Share-based Compensation and Employee Benefit Plans - Cost of Defined Contribution Plan (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Successor
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 2.6
Successor | Cost of Sales and Operating Expense
Defined Benefit Plan Disclosure [Line Items]
Contributions	1.0
Successor | Selling, general and administrative expenses
Defined Benefit Plan Disclosure [Line Items]
Contributions	$ 1.6
Predecessor
Defined Benefit Plan Disclosure [Line Items]
Contributions		$ 2.5
Predecessor | Cost of Sales and Operating Expense
Defined Benefit Plan Disclosure [Line Items]
Contributions		1.0
Predecessor | Selling, general and administrative expenses
Defined Benefit Plan Disclosure [Line Items]
Contributions		$ 1.5