Condensed, Consolidated Statements of Equity (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Stockholders' Equity [Abstract]
Redeemable noncontrolling interests	$ 384	$ 641
Mandatorily redeemable noncontrolling interest	406	365
Other comprehensive income (loss) related to mandatorily redeemable noncontrolling interests	21	$ 167
Purchase of noncontrolling interests, portion attributable to redeemable noncontrolling interests	$ 1,210