Income Taxes and Distributions (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Reconciliation of Income Tax Expense
Tax at statutory rate on earnings from continuing operations before unconsolidated entities, noncontrolling interests and income taxes	$ 178,862,000		$ 51,020,000		$ 64,979,000
Change in valuation allowance	9,133,000	[1]	18,444,000	[1]	9,234,000	[1]
Tax at statutory rate on earnings not subject to federal income taxes	(189,070,000)		(88,762,000)		(72,640,000)
Foreign Permanent Depreciation	4,383,000		22,313,000		0
Other differences	(4,575,000)		4,476,000		6,039,000
Income tax (expense) benefit	$ (1,267,000)		$ 7,491,000		$ 7,612,000

[1] Excluding purchase price accounting.