Consolidated Statements Of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Net income (loss)	$ 23,675	$ (4,929)
Company sponsored benefit plans:
Change in translation adjustment and post-employment benefits of equity method investments, net of tax benefit of $37 and $8, respectively	(15)	18
Other comprehensive income (loss)	(728)	229
Comprehensive income (loss)	22,947	(4,700)
Change In Pension Plans [Member]
Company sponsored benefit plans:
Change in pension plans and post employment benefits, net of tax expense $155 and $166, and benefit of $6 and $22, respectively	133	250
Change In Post Employment Benefits [Member]
Company sponsored benefit plans:
Change in pension plans and post employment benefits, net of tax expense $155 and $166, and benefit of $6 and $22, respectively	$ (846)	$ (39)