Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (1,449)	$ (3,292)	$ (20,166)	$ (4,154)
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustment	(2,750)	(7,119)	2,776	(6,487)
Defined benefit pension plan, net of tax:
Amortization of deferred loss, net of tax benefit of $2 for the three months ended September 30, 2015; net of tax benefit of $6 for the nine months ended September 30, 2015	9	0	27	0
Amortization of prior service cost, net of tax benefit of $7 for each of the three months ended September 30, 2015 and 2014; net of tax benefit of $21 for each of the nine months ended September 30, 2015 and 2014	27	28	84	86
Other comprehensive income (loss), net of tax	(2,714)	(7,091)	2,887	(6,401)
Comprehensive loss	$ (4,163)	$ (10,383)	$ (17,279)	$ (10,555)