Segment and Geographic Data - Schedule of Revenues by Geographic Location (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended			8 Months Ended	9 Months Ended
	Jun. 08, 2016	Jun. 30, 2017	Jun. 30, 2016		Jun. 08, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Period acquiree is included in operating activities		22 days				22 days
Successor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 942.7	$ 214.3	[1]		$ 2,655.2	$ 214.3	[1]
Successor | U.S.
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		699.1	161.7			1,970.7	161.7
Successor | Canada
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		43.3	9.1			126.9	9.1
Successor | Other North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		29.7	3.6			54.9	3.6
Successor | Total North America Operations
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		772.1	174.4			2,152.5	174.4
Successor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		120.9	29.3			342.2	29.3
Successor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues		$ 49.7	$ 10.6			$ 160.5	$ 10.6
Predecessor
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 650.2				$ 2,340.1
Predecessor | U.S.
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	498.2				1,779.4
Predecessor | Canada
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	27.5				102.4
Predecessor | Other North America
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	10.2				35.4
Predecessor | Total North America Operations
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	535.9				1,917.2
Predecessor | EMEA
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	78.8				291.9
Predecessor | Asia
Revenues by geographic location, based on the jurisdiction of the subsidiary entity receiving revenue credit for the sale
Revenues	$ 35.5				$ 131.0

[1] The three and nine months ended June 30, 2016 include 22 days of the acquired business’ operating activities as a result of the consummation of the Business Combination on June 9, 2016.