Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2017

Derivative Instruments [Abstract]

Non-Hedge Derivative Assets and Liabilities

	As of March 31, 2017				At December 31, 2016
(Dollars in thousands)	Notional		Fair Value		Notional		Fair Value
Non-hedge derivative assets	$	160,125	$	2,043	$	123,953	$	1,235
Non-hedge derivative liabilities		160,125		2,043		123,953		1,235