Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 19,418		$ 14,027
Other comprehensive income (loss), net of tax:
Foreign currency translation	(2)	[1]	37	[1]
Defined benefit pension plan:
Net gain/(loss) arising during the period	0		(92)
Amortization of prior service cost included in net periodic pension cost	0		0
Total defined benefit pension plan	0	[1]	(92)	[1]
Total other comprehensive income, net of tax	(2)		(55)
Comprehensive income (loss)	$ 19,416		$ 13,972

[1] During the periods presented, the Company did not have material reclassifications out of other comprehensive income.