Derivatives - Additional Information (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 31, 2015 USD ($) $ / shares shares	Sep. 30, 2015 USD ($)	Sep. 30, 2015 USD ($)	Aug. 10, 2015 shares	Jan. 31, 2015 USD ($) Counterparty
Derivatives Fair Value [Line Items]
Unrealized fair market value gain (loss)			$ (2,695,000)
Unrealized gain on derivatives, net of tax		$ (4,690,000)	(3,621,000)
Unrealized loss on derivatives, tax expense		(904,000)	0
Common shares issuable upon conversion of warrants | shares	1,250,764			1,250,764
Class of warrant exercisable period	3 years
Warrants exercise price | $ / shares	$ 22.50
Warrant
Derivatives Fair Value [Line Items]
Fair value derivative, liabilities	$ 1,500,000	400,000	400,000
Fair value derivative, gain		1,100,000	1,100,000
Interest Rate Swaps
Derivatives Fair Value [Line Items]
Derivative notional amount		109,143,000	109,143,000		$ 109,100,000
Number of counterparties | Counterparty					4
Unrealized fair market value gain (loss)			2,700,000
Additional amount to be classified as an increase to interest expense during next 12 months		2,100,000	2,100,000
Unrealized gain on derivatives, net of tax		4,700,000	3,600,000
Unrealized loss on derivatives, tax expense		$ 900,000	0
Undesignated derivative instruments recorded by the Company			$ 0