Employee Benefit Plans - Summary of Components of Net Periodic Pension Cost (Benefit) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		12 Months Ended
	Dec. 31, 2014	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Assets Contributed to 401(k) Plan						$ 7,900
Defined Contribution Plan, Distribution Period						7 years
Pension Plan Assets Reverted to the Company	$ 23,800
Interest cost			$ 149		$ 496
Expected loss on assets			137		412
Settlement charges			529		969
Amortization of loss			115		373
Net periodic pension cost			$ 930		$ 2,250
Discount rate					3.75%
Expected long term rate on plan assets					0.00%
Restricted investments:	$ 7,940	$ 7,156		$ 7,156		$ 7,940
Compensation Expense for Assets Allocated to Participants				900
Unrealized Gain (Loss) on Investments (less than)		$ 100		$ 100