Derivative Instruments (Tables)

6 Months Ended

Jun. 30, 2017

Derivative Instruments [Abstract]

Non-Hedge Derivative Assets and Liabilities

	As of June 30, 2017				At December 31, 2016
(Dollars in thousands)	Notional		Fair Value		Notional		Fair Value
Non-hedge derivative assets	$	180,631	$	2,698	$	123,953	$	1,235
Non-hedge derivative liabilities		180,631		2,698		123,953		1,235