Accounts Receivable And Unbilled, Net - Schedule of Allowance for Doubtful Account Activity (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2016	Dec. 31, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts - beginning balance		$ (5,595)	$ (1,724)	$ (5,855)
Current year provision		(624)	(2,166)	(642)
Write-offs and recoveries		364	668	4,773
Allowance for doubtful accounts - ending balance	$ (5,595)	(5,855)	$ (3,222)	$ (1,724)
Predecessor
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts - beginning balance	(5,573)	$ (5,595)
Current year provision	(49)
Write-offs and recoveries	27
Allowance for doubtful accounts - ending balance	$ (5,595)