Related Party Transactions - Related Party Expenses (Details) - Predecessor - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Related Party Transaction [Line Items]
Operating expenses – related parties	$ 1,945	$ 1,480	$ 5,812	$ 4,550
General and administrative – related parties	1,210	1,730	3,571	5,397
Maintenance expenses – related parties	65	103	257	330
Allocated operating and general corporate transactions
Related Party Transaction [Line Items]
Operating expenses – related parties	1,762	1,458	5,233	4,460
General and administrative – related parties	1,210	1,730	3,571	5,397
Total related party expenses	2,972	3,188	8,804	9,857
Directly incurred transactions
Related Party Transaction [Line Items]
Operating expenses – related parties	183	22	579	90
Maintenance expenses – related parties	65	103	257	330
Total related party expenses	$ 248	$ 125	$ 836	$ 420