Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 26,098	$ 29,360
Other comprehensive income, net of tax:
Currency translation adjustments (net of income tax benefit of $385)	(7,827)
Change in unrecognized net periodic pension costs (net of income tax benefit: $134 in 2013 and $225 in 2012)	208	351
Amounts recognized in interest expense, net (net of income tax benefit: $8 in 2013 and 2012)	(13)	(13)
Other comprehensive income (loss)	(7,632)	338
Comprehensive income	$ 18,466	$ 29,698