Benefit Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Benefit Plans [Abstract]
Employer contributions		$ 0	$ 1,000,000
Expense related to new 401(k) plan	$ 500,000
Stop loss coverage on self-insured plan	$ 100,000