Accounting Policies (Details 2) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense	$ 47,752,000	$ 57,153,000	$ 100,328,000	$ 119,605,000
Net gain on change in control of interests	(487,684,000)	0	(487,684,000)	(2,759,000)
Discontinued operations	0	(797,000)	0	1,844,000
Equity (loss) from unconsolidated entities, gross of tax	275,000	(11,078,000)	(9,038,000)	(20,311,000)
Income tax benefit	182,230,000	(46,947,000)	183,045,000	(43,016,000)
Noncontrolling Interest	$ (680,000)	$ (4,853,000)	(3,475,000)	(5,974,000)
Loss reclassified from accumulated OCI			(11,509,000)	(15,005,000)
Reclassification out of accumulated OCI [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense			18,312,000	18,851,000
Net gain on change in control of interests			(900,000)
Discontinued operations				3,666,000
Equity (loss) from unconsolidated entities, gross of tax			1,967,000	2,003,000
Total before income tax and noncontrolling interest			19,379,000	24,520,000
Income tax benefit			(7,862,000)	(9,507,000)
Noncontrolling Interest			(8,000)	(8,000)
Loss reclassified from accumulated OCI			$ 11,509,000	$ 15,005,000