Income Taxes and Distributions (Details 2) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of Income Tax Expense
Tax at statutory rate on earnings from continuing operations before unconsolidated entities, noncontrolling interests and income taxes		$ 313,250	$ 178,862	$ 51,020
Change in valuation allowance	[1]	13,759	9,133	18,444
Tax at statutory rate on earnings not subject to federal income taxes		(319,832)	(189,070)	(88,762)
Foreign Permanent Depreciation		7,500	4,383	22,313
Other differences		(8,226)	(4,575)	4,476
Income tax (expense) benefit		$ 6,451	$ (1,267)	$ 7,491

[1] Excluding purchase price accounting.