Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 68,825	$ 124,246	$ 85,122
Other comprehensive income, net of tax
Foreign currency translation adjustments	(2,524)	925	15,535
Reclassification of cumulative translation adjustment associated with sale of equity method investee		(1,715)
Reclassification of cumulative translation adjustment associated with acquisition of business	(216)
Pension liability adjustments, net of income tax expense of $74, $1,631, and $330 for year ended December 31, 2012, 2011, and 2010	(295)	2,386	(837)
Other comprehensive income	(3,035)	1,596	14,698
Comprehensive income	65,790	125,842	99,820
Less comprehensive income attributable to the noncontrolling interest		620	929
Comprehensive income attributable to Entegris, Inc.	$ 65,790	$ 125,222	$ 98,891