Reconciliation of Equity (Net Assets) Attributable to the Noncontrolling Interests (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Reconciliation of equity (net assets) attributable to the noncontrolling interests
Non-controlling interests at beginning of period		$ 9,258		$ 10,003
Non-redeembable Noncontrolling Interest in Variable Interest Entity			9,086
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest		231	0	745
Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest	157		595	0
Non-redeembable Noncontrolling Interest in Variable Interest Entity	$ 8,491		$ 8,491