CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Statement of Comprehensive Income (Loss)
Net income	$ 8,936	$ 10,707	$ 22,204	$ 49,694
Translation adjustment	4,873	(6,852)	5,277	(621)
Unrealized gain (loss) on defined benefit plan, net of tax	375	(3,783)	(3,588)	1,347
Comprehensive income	14,184	72	23,893	50,420
Less: Comprehensive income attributable to noncontrolling interest	(383)	(750)	(2,127)	(2,072)
Total comprehensive income (loss) attributable to common stockholders	$ 13,801	$ (678)	$ 21,766	$ 48,348