Income Taxes (Tables)
   | 
12 Months Ended | 
Dec. 31, 2019  | 
| Income Taxes [Abstract] | 
 
 | 
| Components Of Consolidated Income (Losses) From Continuing Operations Before Income Taxes | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						Year Ended December 31, 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						2018 
				 | 
				
					 
						  
				 | 
				
					 
						2017 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						U.S. operations 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				8,553 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				8,998 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(4,794)
				 | 
			 
			
				| 
					 
						Foreign operations 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,428 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(2,525)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(966)
				 | 
			 
			
				| 
					 
						Income (loss) before income tax 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				9,981 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				6,473 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(5,760)
				 | 
			 
		  
		
			
		 
		  
	   
 | 
| Components Of Income Tax Provision (Benefit) | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						Year Ended December 31, 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						2018 
				 | 
				
					 
						  
				 | 
				
					 
						2017 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Current: 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Federal 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(41)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(74)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				255 
				 | 
			 
			
				| 
					 
						State and local 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				179 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				41 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
			 
			
				| 
					 
						Foreign 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				111 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				295 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				150 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				249 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				262 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				405 
				 | 
			 
			
				| 
					 
						Deferred: 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Federal 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,133 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				2,645 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				16,752 
				 | 
			 
			
				| 
					 
						State and local 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(156)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				326 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(374)
				 | 
			 
			
				| 
					 
						Foreign 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				3,273 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(575)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(110)
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				4,250 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				2,396 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				16,268 
				 | 
			 
			
				| 
					 
						Change in valuation allowance for deferred income taxes 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(13,490)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(3,486)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(21,760)
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(9,240)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(1,090)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(5,492)
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Income tax benefit 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(8,991)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(828)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(5,087)
				 | 
			 
		  
		
			
		 
		  
	   
 | 
| Schedule Of Effective Income Tax Rate Reconciliation | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						Year Ended December 31, 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						2018 
				 | 
				
					 
						  
				 | 
				
					 
						2017 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Statutory income tax expense (benefit) 
				 | 
				
					 
						  
				 | 
				21.0 
				 | 
				
					 
						% 
				 | 
				
					 
						  
				 | 
				21.0 
				 | 
				
					 
						% 
				 | 
				
					 
						  
				 | 
				(34.0)
				 | 
				
					 
						% 
				 | 
			 
			
				| 
					 
						Increase (decrease) in income taxes resulting from: 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Foreign taxes 
				 | 
				
					 
						  
				 | 
				0.2 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(0.9)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1.7 
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						State income taxes, net of federal income taxes 
				 | 
				
					 
						  
				 | 
				1.9 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				3.4 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(2.3)
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Income tax credits 
				 | 
				
					 
						  
				 | 
				(5.6)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(6.8)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(5.0)
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Incentive stock options 
				 | 
				
					 
						  
				 | 
				(3.7)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1.3 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				5.5 
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Change in effective state rate 
				 | 
				
					 
						  
				 | 
				(0.1)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				0.3 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(1.5)
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Deferred tax asset write-off 
				 | 
				
					 
						  
				 | 
				31.4 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				21.7 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Translation loss 
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(6.9)
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Impact of tax reform 
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(105.7)
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Other 
				 | 
				
					 
						  
				 | 
				0.7 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1.1 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				3.3 
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Change in valuation allowance 
				 | 
				
					 
						  
				 | 
				(135.9)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(53.9)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				56.6 
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Income tax benefit 
				 | 
				
					 
						  
				 | 
				(90.1)
				 | 
				
					 
						% 
				 | 
				
					 
						  
				 | 
				(12.8)
				 | 
				
					 
						% 
				 | 
				
					 
						  
				 | 
				(88.3)
				 | 
				
					 
						% 
				 | 
			 
		  
		
			
		 
		  
	   
 | 
| Schedule Of Deferred Tax Assets And Liabilities | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						December 31, 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						2018 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Deferred tax assets: 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Net operating loss, capital loss amount and research & experimentation credit carryforwards 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				40,949 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				44,885 
				 | 
			 
			
				| 
					 
						Non-cash compensation 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,622 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,384 
				 | 
			 
			
				| 
					 
						Accrued liabilities 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				263 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				282 
				 | 
			 
			
				| 
					 
						Reserves and other 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,027 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				1,138 
				 | 
			 
			
				| 
					 
						Intangibles 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				84 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				233 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				43,945 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				47,922 
				 | 
			 
			
				| 
					 
						Valuation allowance 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(28,632)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(42,122)
				 | 
			 
			
				| 
					 
						Net deferred tax assets 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				15,313 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				5,800 
				 | 
			 
			
				| 
					 
						Deferred tax liabilities: 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Depreciation 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(1,091)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(966)
				 | 
			 
			
				| 
					 
						Intangibles 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(7,542)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(7,628)
				 | 
			 
			
				| 
					 
						Other 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(125)
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(8,633)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(8,719)
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Total 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				6,680 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(2,919)
				 | 
			 
		  
		
			
		 
		  
	   
 | 
| Schedule Of Roll Forward Of Valuation Allowance For Deferred Income Tax Assets | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						Balance at Beginning of Year 
				 | 
				
					 
						  
				 | 
				
					 
						Charged to Costs and Expenses 
				 | 
				
					 
						  
				 | 
				
					 
						Other Adjustments (a) 
				 | 
				
					 
						  
				 | 
				
					 
						Balance at End of Year 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						2017 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				67,662 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				3,166 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(25,017)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				45,811 
				 | 
			 
			
				| 
					 
						2018 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				45,811 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(3,486)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(203)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				42,122 
				 | 
			 
			
				| 
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				42,122 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(13,473)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				(17)
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				28,632 
				 | 
			 
		  
		
			
		 
		
 | 
			 
				 (a)
			 
		 | 
 | 
			 
			During the year ended December 31, 2017, the decrease in valuation allowance is due to the Tax Act. 
 | 
 
  
		
			
		 
		  
	   
 | 
| Summary Of Tax Credit Carryforwards | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Net Operating Loss Carryforward Expiration Dates 
				 | 
			 
			
				| 
					 
						December 31, 2019 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Expiration Dates December 31, 
				 | 
				
					 
						  
				 | 
				
					 
						Net Operating Loss Amount 
				 | 
			 
			
				| 
					 
						2022 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				111,049 
				 | 
			 
			
				| 
					 
						2023 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				5,712 
				 | 
			 
			
				| 
					 
						2024 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				3,566 
				 | 
			 
			
				| 
					 
						2025 and beyond 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				11,294 
				 | 
			 
			
				| 
					 
						Total 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				131,621 
				 | 
			 
		  
		
			
		 
		  
	   
 | 
| Schedule Of Unrecognized Tax Benefits | 
 
		
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						December 31, 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						2019 
				 | 
				
					 
						  
				 | 
				
					 
						2018 
				 | 
				
					 
						  
				 | 
				
					 
						2017 
				 | 
			 
			
				| 
					 
						 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
			 
			
				| 
					 
						Balance, beginning of year 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				545 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				476 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				1,135 
				 | 
			 
			
				| 
					 
						Additions for current year tax positions 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				77 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				69 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				91 
				 | 
			 
			
				| 
					 
						Additions for prior year tax positions 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				11 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
			 
			
				| 
					 
						Reductions for prior year tax positions 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(72)
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(13)
				 | 
			 
			
				| 
					 
						Payments in settlement 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				
					 
						  - 
				 | 
				
					 
						  
				 | 
				
					 
						  
				 | 
				(737)
				 | 
			 
			
				| 
					 
						Balance, end of year 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				561 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				545 
				 | 
				
					 
						  
				 | 
				
					 
						$ 
				 | 
				476 
				 | 
			 
		  
		
			
		 
		  
	   
 |