Stock-Based Compensation and Equity (Details 3) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Redeemable Noncontrolling Interest, Equity, Carrying Amount
Balance - beginning of period			$ 7,436
Net income (loss)	(111)	(43)	151	(93)
Distributions			(11,185)		(71,820)
Change in other comprehensive loss	21	(2)	27	21
Balance - end of period	6,418		6,418		7,436
Redeemable Noncontrolling Interest
Redeemable Noncontrolling Interest, Equity, Carrying Amount
Balance - beginning of period			7,436	7,531	7,531
Redemption value adjustment			(306)	0
Net income (loss)			151	(93)
Distributions			(836)	(335)
Change in other comprehensive loss			(27)	(21)
Balance - end of period	$ 6,418	$ 7,082	$ 6,418	$ 7,082