CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 16,937	$ 40,994	$ 67,753	$ 89,160
Other comprehensive income (loss), net of tax:
Currency translation gain (loss)	19	9,299	11,198	(25,149)
Unrealized gain on securities	0	0	0	2,776
Amount reclassified for realized gain on securities	0	0	0	(10,194)
Defined benefit pension plan:
Defined benefit pension plan amortization of actuarial loss and prior service credits	382	468	764	468
Total other comprehensive income (loss), net of tax	401	9,767	11,962	(32,099)
Comprehensive income	$ 17,338	$ 50,761	$ 79,715	$ 57,061