CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net income	$ 37,820	$ 40,669	$ 60,835	$ 111,049
Other comprehensive income (loss), net of tax:
Currency translation gain (loss)	24,297	(38,434)	10,803	13,863
Unrealized gain (loss) on securities	2,404	(245)	3,292	551
Defined benefit pension plan:
Actuarial loss	(4,170)	0	(4,170)	0
Curtailment gain	457	0	457	0
Total other comprehensive income (loss), net of tax	22,988	(38,679)	10,382	14,414
Comprehensive income	$ 60,808	$ 1,990	$ 71,217	$ 125,463