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Consolidated Statements of Comprehensive Loss - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Net loss $ (27,216,000) $ (1,184,000)
Other comprehensive (loss) income:    
Foreign currency translation adjustments (2,289,000) (2,830,000)
Employee benefit related, net of tax 1,564,000 (4,471,000)
Other comprehensive (loss) (725,000) (7,301,000)
Comprehensive loss $ (27,941,000) $ (8,485,000)