Condensed Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Statement of Cash Flows [Abstract]
Income taxes paid, net	$ (25,307)	$ (34,209)
Fully vested restricted stock units issued	325	252
Restricted stock unit dividend equivalents, net of forfeitures	722	$ 667
Equity Method Investments, Non-Cash Reclassifications	$ 21,103