Accumulated Other Comprehensive Income (Loss) Schedule of Reclassifications Out of AOCI into Net Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Related tax (expense) benefit	$ (5,680)	$ (3,712)	$ (4,025)	$ 2,439	$ (415)	$ (2,829)	$ 371	$ 1,496	$ (10,978)	$ (1,377)	$ (4,141)
Income (loss) from continuing operations									32,338	(13,816)	(3,353)
Available for sale securities | Amount reclassified from AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) on available for sale securities									1,026	(99)	50
Related tax (expense) benefit									(362)	35	(19)
Income (loss) from continuing operations									664	(64)	31
Interest rate swaps | Amount reclassified from AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Unrealized gains (losses) on interest rate swaps									(121)	(274)	(97)
Related tax (expense) benefit									25	95	34
Income (loss) from continuing operations									$ (96)	$ (179)	$ (63)
Interest Expense
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Income Statement Location of Gain (Loss) Reclassified from Accumulated OCI									Interest expense
Provision for income taxes
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Derivative Instruments, Income Statement Location of Gain (Loss) Reclassified from Accumulated OCI									Provision for income tax