Accumulated Other Comprehensive Income - AOCI (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Accumulated other comprehensive (loss) income, Beginning Balance	$ 46,921	$ 93,267
OCI before reclassifications	6,478	(20,658)
Amounts reclassified from AOCI	0	0
Other Comprehensive Income (Loss), Net of Tax, Total	6,478	(20,658)
Accumulated other comprehensive (loss) income, Ending Balance	53,399	72,609
Interest rate Swaps [Member]
Accumulated other comprehensive (loss) income, Beginning Balance	(19,368)	(25,803)
OCI before reclassifications	(4,195)	(776)
Amounts reclassified from AOCI	0	0
Other Comprehensive Income (Loss), Net of Tax, Total	(4,195)	(776)
Accumulated other comprehensive (loss) income, Ending Balance	(23,563)	(26,579)
Securities available for sale [Member]
Accumulated other comprehensive (loss) income, Beginning Balance	78,448	133,774
OCI before reclassifications	11,094	(21,332)
Amounts reclassified from AOCI	0	0
Other Comprehensive Income (Loss), Net of Tax, Total	11,094	(21,332)
Accumulated other comprehensive (loss) income, Ending Balance	89,542	112,442
Pro Rata Share Of Non Consolidated Subsidiaries Oci [Member]
Accumulated other comprehensive (loss) income, Beginning Balance	(9,319)	(8,992)
OCI before reclassifications	6	157
Amounts reclassified from AOCI	0	0
Other Comprehensive Income (Loss), Net of Tax, Total	6	157
Accumulated other comprehensive (loss) income, Ending Balance	(9,313)	(8,835)
Other [Member]
Accumulated other comprehensive (loss) income, Beginning Balance	(2,840)	(5,712)
OCI before reclassifications	(427)	1,293
Amounts reclassified from AOCI	0	0
Other Comprehensive Income (Loss), Net of Tax, Total	(427)	1,293
Accumulated other comprehensive (loss) income, Ending Balance	$ (3,267)	$ (4,419)