Significant Accounting Policies Out of Period Adjustment (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Accounts payable and accrued expenses			$ 4,995
Total adjustments	(69,468)	25,527	20,530
Net cash flow provided by operating activities	35,153	37,542	81,825
Development fixed asset additions			(85,356)
Net cash flow used for investing activities	(89,809)	6,537	(219,438)
Net change in accounts payable related to fixed asset additions	5,028	5,105	6,098
Adjustments for Error Corrections [Member]
Accounts payable and accrued expenses			8,262
Total adjustments			8,262
Net cash flow provided by operating activities			8,262
Development fixed asset additions			(8,262)
Net cash flow used for investing activities			(8,262)
Net change in accounts payable related to fixed asset additions			(8,262)
As Reported [Member]
Accounts payable and accrued expenses			(3,267)
Total adjustments			12,268
Net cash flow provided by operating activities			73,563
Development fixed asset additions			(77,094)
Net cash flow used for investing activities			(211,176)
Net change in accounts payable related to fixed asset additions			$ 14,360