Employee Benefit Plans - Summary of Components of Net Periodic Pension Cost (Benefit) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2014	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Compensation and Retirement Disclosure [Abstract]
Assets Contributed to 401(k) Plan						$ 7,900
Pension Plan Assets Reverted to the Company	$ 23,800
Interest cost			$ 162		$ 347
Expected loss on assets			138		275
Settlement charges			200		440
Amortization of loss			125		257
Net periodic pension cost			$ 625		$ 1,319
Discount rate					3.70%
Expected long term rate on plan assets					0.00%
Restricted investments:	$ 7,940	$ 7,129		$ 7,129		$ 7,940
Compensation Expense for Assets Allocated to Participants				(900)
Unrealized Gain (Loss) on Investments (less than)		$ 100		$ 100