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
Consolidated Statements of Comprehensive Income [Abstract]
Net income	$ 18,481		$ 23,245		$ 65,519		$ 64,649
Other comprehensive income (loss), net of tax
Unrealized gain (loss) on hedging activities, net of tax (1)	95	[1]	(19)	[1]	(302)	[1]	31	[1]
Foreign currency translation adjustments, net of tax (2)	24,567	[2]	(34,388)	[2]	14,112	[2]	5,405	[2]
Defined benefit pension and other postretirement benefits, net of tax (3)	394	[3]	1,988	[3]	4,305	[3]	3,318	[3]
Total other comprehensive income (loss), net of tax	25,056		(32,419)		18,115		8,754
Total comprehensive income (loss)	$ 43,537		$ (9,174)		$ 83,634		$ 73,403

[1] Net of tax of $(106) and $(6) for the three months ended September 30, 2012 and 2011, respectively, and $(425) and $107 for the nine months ended September 30, 2012 and 2011, respectively.

[2] Net of tax of $1,587 and $(1,464) for the three months ended September 30, 2012 and 2011, respectively, and $1,095 and $(24) for the nine months ended September 30, 2012 and 2011, respectively.

[3] Net of tax of $687 and $445 for the three months ended September 30, 2012 and 2011, respectively, and $2,848 and $1,336 for the nine months ended September 30, 2012 and 2011, respectively.