Commitments and Contingencies (Details)	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2015 USD ($) item	Jul. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Commitments and Contingencies.
Rental expense	$ 878	$ 840	$ 2,657	$ 1,844
Operating Leases
2016	1,690,000
2017	1,410,000
2018	1,306,000
2019	1,297,000
2020	876,000
Thereafter	927,000
Total	$ 7,506,000
Number of residual value guarantees related to operating leases | item	0