Noncontrolling Interests (Reconciliation of Net Income Attributable to Noncontrolling Interests) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components on noncontrolling interests
Net income attributable to nonredeemable noncontrolling interests	$ 1,004	$ 5,000	$ 4,193
Net income (loss) attributable to redeemable noncontrolling interests	0	68	(2,002)
NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	$ (1,004)	$ (5,068)	$ (2,191)