Income Taxes (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	May 01, 2007 Sunrise Acquisition	May 12, 2011 ASLG
Reconciliation of income tax expense computed by applying federal corporate tax rate
Tax at statutory rate on earnings from continuing operations before unconsolidated entities, noncontrolling interest and income taxes	$ 167,469,000	$ 105,185,000	$ 115,645,000
State income taxes, net of federal benefit	(1,857,000)	(842,000)	(2,364,000)
Increase in valuation allowance	7,145,000	33,577,000	8,783,000
(Decrease) increase in ASC 740 income tax liability	2,805,000	656,000	(4,084,000)
Tax at statutory rate on earnings not subject to federal income taxes	(186,938,000)	(144,698,000)	(150,331,000)
Other differences	(452,000)	(160,000)	1,691,000
Income tax expense (benefit)	(11,828,000)	(6,282,000)	(30,660,000)
Income tax
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent				$ 306,300,000	$ 44,600,000