XML 74 R56.htm IDEA: XBRL DOCUMENT v3.10.0.1
Derivatives (Pre-tax Impact of Change in Fair Value) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Interest Rate Cap | Interest expense        
Derivative [Line Items]        
Gains (Losses) Recognized in Income on Derivatives $ 282 $ 0 $ 857 $ 0