Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reconciliation of equity attributable to non-controlling interests
NCI, beginning of period	$ 2,700	$ 4,400	$ 5,030	$ 600
Net income (loss) attributable to NCI, net of tax	(2,451)	8,626	(4,818)	8,398
Fair value of net assets and liabilities acquired and assigned to NCI	0	0	0	4,000
Distribution to noncontrolling interest		(9,100)		(9,100)
Translation adjustment and other	200	0	200	0
NCI, end of period	$ 421	$ 3,900	$ 421	$ 3,900