Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operations
Net income	$ 44.4	$ 0.8
Adjustments to reconcile to cash flows from operations:
Depreciation and amortization	57.6	53.5
Debt issuance costs amortization, debt issuance costs write-offs and original issue discount amortization	3.3	3.1
Provision for bad debt	1.5	(0.1)
Deferred income taxes	(4.5)	(0.8)
Equity-based compensation expense	5.3	4.2
Change in fair value of contingent consideration obligations	(14.7)	19.8
Gain from sales of property and equipment	(0.6)	0.0
Gain related to reimbursements of certain capital expenditures incurred	0.0	(8.1)
Changes in assets and liabilities:
Accounts and notes receivable	(32.9)	(63.8)
Inventories	(46.9)	(34.9)
Other current assets	(0.1)	3.1
Accounts payable	(8.1)	11.7
Accrued expenses and other liabilities	0.8	(1.1)
Changes in other operating assets and liabilities, net	2.7	0.6
Net cash provided by (used in) operating activities	7.8	(12.0)
Cash flows from investing activities
Additions to property and equipment	(11.8)	(20.7)
Proceeds from the disposal of property and equipment	3.3	0.4
Proceeds from reimbursement of certain capital expenditures incurred	0.0	8.4
Cash paid for asset acquisitions	(11.0)	(63.5)
Net cash used in investing activities	(19.5)	(75.4)
Cash flows from financing activities
Cash paid to TPG related to TRA	(4.2)	0.0
Proceeds from short-term debt	42.7	30.1
Repayments of short-term debt	(45.9)	(29.6)
Proceeds from issuance of long-term debt	524.7	611.6
Repayments of long-term debt and capital lease obligations	(514.3)	(536.7)
Payment of debt issuance costs	(0.8)	(1.3)
Net cash provided by financing activities	2.2	74.1
Effect of exchange rate changes on cash and cash equivalents	(0.6)	(0.1)
Decrease in cash and cash equivalents	(10.1)	(13.4)
Cash and cash equivalents at the beginning of the period	53.9	47.5
Cash and cash equivalents at the end of the period	43.8	34.1
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	36.0	33.9
Cash paid during the period for taxes (net of refunds)	15.9	4.3
Supplemental disclosure of non-cash investing and non-cash financing activities:
Non-cash capital expenditures	1.4	16.0
Non-cash intangible assets acquired	0.0	3.7
Non-cash capital lease obligations, net	$ 0.2	$ 13.6