Derivatives - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Derivatives Fair Value [Line Items]
Unrealized gain (loss) on derivatives, net of tax	$ (764)	$ (5,798)
Recognized interest expense on derivatives into earnings, net of tax	(563)	(525)
Derivative assets	2,300		$ 1,600
Derivative liabilities	1,500
Interest Rate Swaps
Derivatives Fair Value [Line Items]
Unrealized gain (loss) on derivatives, net of tax	(800)	(5,800)
Unrealized gain (loss) on derivatives, tax expense	500	0
Recognized interest expense on derivatives into earnings, net of tax	600	500
Recognized interest expense on derivatives into earnings, tax expense	400	$ 0
Additional amount to be classified as an increase to interest expense during next 12 months	$ 1,200