Segment and Geographic Data - Schedule of Revenues by Geographic Location (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Successor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 794.8
Successor | U.S.
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	587.4
Successor | Canada
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	36.9
Successor | Other North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	12.5
Successor | Total North America Operations
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	636.8
Successor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	96.9
Successor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 61.1
Predecessor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 827.7
Predecessor | U.S.
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		625.4
Predecessor | Canada
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		36.0
Predecessor | Other North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		12.4
Predecessor | Total North America Operations
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		673.8
Predecessor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		104.7
Predecessor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 49.2