Business Combination - Narrative (Details) $ / shares in Units, $ in Millions					1 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2016 USD ($) shares	Sep. 30, 2016 USD ($)	Jun. 30, 2016 $ / shares	Jun. 09, 2016 USD ($) merger location	Dec. 31, 2016 USD ($) shares	Jun. 30, 2016 $ / shares	Dec. 31, 2016 USD ($) shares	Dec. 31, 2015 USD ($)	Sep. 30, 2016 USD ($)
Business Acquisition [Line Items]
Fair value adjustment of accounts payable							$ 2.1
Warrants outstanding (in shares) | shares	50,025,000				50,025,000		50,025,000
Nexeo Solutions Inc.
Business Acquisition [Line Items]
Total consideration				$ 797.1
Transaction related costs							$ 0.8	$ 1.0
Number of mergers | merger				2
Excess shares (in shares) | shares	5,178,642				5,178,642		5,178,642
Number of days to elect excess shares provision				5 days
Contingent consideration - Fair value of Deferred Cash Consideration	$ 42.9	$ 35.0		$ 45.4
Payment by the Company to Selling Equityholders of percentage of net cash tax savings						85.00%
Percentage of net cash tax savings retained by the Company						15.00%
Contingent consideration - Fair value of TRA	86.1	$ 83.4		84.2
Expected Benefit period of TRA						20 years
Accounts receivable fair value adjustment				$ 4.1
Inventory fair value step up									$ 13.8
Number of real estate properties | location				42
Number of leased locations | location				11
Property, plant and equipment fair value adjustment				$ 96.1
Expected tax deductible goodwill amount	191.5				$ 191.5		$ 191.5
Weighted average number of shares outstanding, basic and diluted (in shares) | shares							76,746,168
Nexeo Solutions Inc. | Minimum
Business Acquisition [Line Items]
Undiscounted cash flows associated with the TRA liability	180.0				180.0		$ 180.0
Nexeo Solutions Inc. | Maximum
Business Acquisition [Line Items]
Undiscounted cash flows associated with the TRA liability	220.0				220.0		220.0
Nexeo Solutions Inc. | Selling Equityholders
Business Acquisition [Line Items]
Number of trading days to meet condition						20 days
Number of consecutive trading days			30 days
Share price (USD per share) | $ / shares			$ 15.00			$ 15.00
Other Intangible Assets
Business Acquisition [Line Items]
Payment at closing					5.1
Recognized intangible assets	$ 8.5				$ 8.5		$ 8.5
Other Intangible Assets | Minimum
Business Acquisition [Line Items]
Weighted average useful life					10 years
Other Intangible Assets | Maximum
Business Acquisition [Line Items]
Weighted average useful life					13 years
Performance Shares
Business Acquisition [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							1,582,500
Warrant
Business Acquisition [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							25,012,500
Restricted Stock
Business Acquisition [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							64,518
RSU
Business Acquisition [Line Items]
Antidilutive securities excluded from computation of earnings per share (in shares) | shares							28,000
Customer-related intangible | Nexeo Solutions Inc.
Business Acquisition [Line Items]
Intangible asset, amortization period (years)				12 years
Finite-lived intangible assets				$ 201.0
Trade names | Nexeo Solutions Inc.
Business Acquisition [Line Items]
Intangible asset, amortization period (years)				4 years
Finite-lived intangible assets				$ 21.0
Below-market leases | Minimum
Business Acquisition [Line Items]
Weighted average useful life							1 year		1 year
Below-market leases | Maximum
Business Acquisition [Line Items]
Weighted average useful life							7 years		7 years
Below-market leases | Nexeo Solutions Inc.
Business Acquisition [Line Items]
Finite-lived intangible assets				$ 0.7
Below-market leases | Nexeo Solutions Inc. | Minimum
Business Acquisition [Line Items]
Lease term, years				1 year
Below-market leases | Nexeo Solutions Inc. | Maximum
Business Acquisition [Line Items]
Lease term, years				7 years
Other Intangible Assets
Business Acquisition [Line Items]
Total consideration					$ 8.5
Founders Shares
Business Acquisition [Line Items]
Number of trading days to meet condition							20 days
Number of consecutive trading days							30 days
Shares, Issued | shares	12,476,250				12,476,250		12,476,250