Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations (Narrative) (Details)

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Discontinued Operations (Narrative) (Details) - Gregory Mountain Products, Inc. [Member] - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Jul. 23, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]            
Disposal Group, Including Discontinued Operation, Consideration         $ 84,135 $ 84,135
Discontinued Operation, Transaction Fees         2,995  
Proceeds from Divestiture of Interest in Consolidated Subsidiaries         81,140  
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax         39,491  
Discontinued Operation, Tax Effect of Gain (Loss) from Disposal of Discontinued Operation         $ 19,424  
Interest expense allocated to discontinued operations $ 0 $ 332 $ 0 $ 601