Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Income Statement of Discontinued Operations) (Details)

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Discontinued Operations (Income Statement of Discontinued Operations) (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Gain on sale of GMP     $ 39,491  
Income from discontinued operations, net of tax 20,822 2,340 22,357 5,072
Gregory Mountain Products, Inc. [Member]
       
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Sales 2,075 8,595 20,684 28,671
Income from operations of GMP 1,696 2,223 4,138 7,480
Gain on sale of GMP 39,491   39,491  
Income tax (expense) benefit (20,365) 117 (21,272) (2,408)
Income from discontinued operations, net of tax $ 20,822 $ 2,340 $ 22,357 $ 5,072