Equity (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reconciliation of equity attributable to non-controlling interests
Noncontrolling interests, beginning of period	$ 3,900,000	$ 600,000	$ 596,000	$ 2,300,000
Net income (loss) attributable to NCI, net of tax	(738,000)	0	7,660,000	0
Fair value of net assets and liabilities acquired and assigned to NCI	0	0	4,000,000	0
Distribution to NCI	0	0	(9,100,000)	0
Deconsolidation of NCI	0	0	0	(1,700,000)
Noncontrolling interests, end of period	$ 3,189,000	$ 600,000	$ 3,189,000	$ 600,000