Consolidated Statements Of Stockholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	11 Months Ended	12 Months Ended
	Dec. 31, 2011	Jan. 31, 2011	Jan. 31, 2010
Consolidated Statements Of Stockholders' Equity [Abstract]
Foreign currency translation adjustments, tax benefit (expense)	$ (3,324)	$ 3,830	$ (1,113)
Reclassification adjustments for realized and unrealized gain (loss) activity, tax expense		(201)
Net unrealized gain on certain investments, tax expense	(65)		(315)
Realized loss on sale of available for sale investment, tax benefit			197
Realized gain on pension plan termination, tax expense			(749)
Net unrealized gain on net investment hedging instruments, tax expense		(239)
Net unrealized gain (loss) on cash flow hedging instruments, tax expense (benefit)	$ (271)	$ 109	$ (30)
Dividends declared / paid, per share	$ 1.7	$ 1.2	$ 1.2