Equity Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Components of Accumulated Other Comprehensive Income [Line Items] [Abstract]
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	$ (11,194)	$ 495	$ 1,983
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	(605)	(1,123)	(1,923)
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(749)	(872)	(757)
Accumulated other comprehensive income/ (loss)	$ (12,548)	$ (1,500)	$ (697)