FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS AND NON-GUARANTORS - Balance Sheet (Details) - USD ($) $ in Millions	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017
Current assets:
Cash and cash equivalents	$ 36.4			$ 33.9	$ 29.6
Accounts receivable, net	395.8			226.0	387.8
Accounts receivable pledged	351.1			84.5	316.7
Inventories	533.7			481.4	500.5
Prepaid and other current assets	72.9			59.9	84.4
Total current assets	1,389.9			885.7	1,319.0
Investment in unconsolidated affiliates	0.0			36.1	34.4
Property, plant and equipment, net	506.7			530.8	517.6
Goodwill	541.9			543.0	621.2
Intangible assets, net	831.1			857.3	879.6
Other assets	197.8			201.6	192.1
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany assets	0.0			0.0	0.0
Total assets	3,467.4			3,054.5	3,563.9
Current liabilities:
Current portion of debt	363.2			132.6	314.5
Accounts payable	222.6			150.5	195.6
Other current liabilities	369.6			329.6	315.2
Total current liabilities	955.4			612.7	825.3
Long-term debt	1,563.5			1,883.8	1,975.4
Distributions in excess of investment in unconsolidated affiliate	0.0			21.9	21.9
Other liabilities	143.3			176.5	210.0
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany liabilities	0.0			0.0
Total liabilities	2,662.2			2,694.9	3,032.6
Total equity—controlling interest	800.4			354.6	526.4
Noncontrolling interest	4.8			5.0	4.9
Total equity	805.2	$ 622.1	$ 253.2	359.6	531.3	$ 495.9	$ 507.8	$ 661.7
Total liabilities and equity	3,467.4			3,054.5	3,563.9
Reportable Legal Entities | Parent
Current assets:
Cash and cash equivalents	0.0			0.0	0.0
Accounts receivable, net	0.0			0.0	0.0
Accounts receivable pledged	0.0			0.0	0.0
Inventories	0.0			0.0	0.0
Prepaid and other current assets	0.0			2.2	1.9
Total current assets	0.0			2.2	1.9
Investment in unconsolidated affiliates				0.0	0.0
Property, plant and equipment, net	0.0			0.0	0.0
Goodwill	0.0			0.0	0.0
Intangible assets, net	0.0			0.0	0.0
Other assets	8.1			11.4	8.0
Equity investment in subsidiaries	1,294.4			860.0	1,434.7
Intercompany assets	1,119.8			1,422.8	1,080.6
Total assets	2,422.3			2,296.4	2,525.2
Current liabilities:
Current portion of debt	40.3			40.0	15.0
Accounts payable	0.0			0.0	0.0
Other current liabilities	16.0			17.8	8.3
Total current liabilities	56.3			57.8	23.3
Long-term debt	1,562.3			1,883.0	1,974.5
Distributions in excess of investment in unconsolidated affiliate				0.0	0.0
Other liabilities	3.3			1.0	1.0
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany liabilities	0.0			0.0	0.0
Total liabilities	1,621.9			1,941.8	1,998.8
Total equity—controlling interest	800.4			354.6	526.4
Noncontrolling interest	0.0			0.0	0.0
Total equity	800.4			354.6	526.4
Total liabilities and equity	2,422.3			2,296.4	2,525.2
Reportable Legal Entities | Subsidiary Guarantors
Current assets:
Cash and cash equivalents	3.6			3.0	2.1
Accounts receivable, net	299.2			172.5	305.1
Accounts receivable pledged	351.1			84.5	316.7
Inventories	449.8			394.5	415.3
Prepaid and other current assets	53.9			44.6	54.5
Total current assets	1,157.6			699.1	1,093.7
Investment in unconsolidated affiliates				35.2	33.6
Property, plant and equipment, net	442.9			464.7	454.6
Goodwill	421.6			420.6	477.6
Intangible assets, net	733.5			752.3	777.7
Other assets	150.5			164.8	167.3
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany assets	0.0			0.0	381.3
Total assets	2,906.1			2,536.7	3,385.8
Current liabilities:
Current portion of debt	357.3			118.4	302.6
Accounts payable	193.9			119.0	161.8
Other current liabilities	325.8			278.3	273.5
Total current liabilities	877.0			515.7	737.9
Long-term debt	777.8			1,140.9	1,201.4
Distributions in excess of investment in unconsolidated affiliate				21.9	21.9
Other liabilities	113.8			143.6	153.0
Equity investment in subsidiaries	20.9			1.5	59.9
Intercompany liabilities	124.7			125.0	0.0
Total liabilities	1,914.2			1,948.6	2,174.1
Total equity—controlling interest	991.9			588.1	1,211.7
Noncontrolling interest	0.0			0.0	0.0
Total equity	991.9			588.1	1,211.7
Total liabilities and equity	2,906.1			2,536.7	3,385.8
Reportable Legal Entities | Non-Guarantors
Current assets:
Cash and cash equivalents	32.8			30.9	27.5
Accounts receivable, net	96.6			53.5	82.7
Accounts receivable pledged	0.0			0.0	0.0
Inventories	83.9			86.9	85.2
Prepaid and other current assets	19.0			13.1	28.0
Total current assets	232.3			184.4	223.4
Investment in unconsolidated affiliates				0.9	0.8
Property, plant and equipment, net	63.8			66.1	63.0
Goodwill	108.7			110.8	132.0
Intangible assets, net	91.0			97.5	94.1
Other assets	39.2			25.4	16.8
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany assets	0.0			6.5	0.0
Total assets	535.0			491.6	530.1
Current liabilities:
Current portion of debt	5.9			14.2	11.9
Accounts payable	28.7			31.5	33.8
Other current liabilities	27.8			33.5	33.4
Total current liabilities	62.4			79.2	79.1
Long-term debt	143.7			102.1	131.5
Distributions in excess of investment in unconsolidated affiliate				0.0	0.0
Other liabilities	26.2			26.9	51.0
Equity investment in subsidiaries	0.0			0.0	0.0
Intercompany liabilities	8.1			0.0	92.3
Total liabilities	240.4			208.2	353.9
Total equity—controlling interest	294.6			283.4	176.2
Noncontrolling interest	0.0			0.0	0.0
Total equity	294.6			283.4	176.2
Total liabilities and equity	535.0			491.6	530.1
Eliminations/ Consolidations
Current assets:
Cash and cash equivalents	0.0			0.0	0.0
Accounts receivable, net	0.0			0.0	0.0
Accounts receivable pledged	0.0			0.0	0.0
Inventories	0.0			0.0	0.0
Prepaid and other current assets	0.0			0.0	0.0
Total current assets	0.0			0.0	0.0
Investment in unconsolidated affiliates				0.0	0.0
Property, plant and equipment, net	0.0			0.0	0.0
Goodwill	11.6			11.6	11.6
Intangible assets, net	6.6			7.5	7.8
Other assets	0.0			0.0
Equity investment in subsidiaries	(1,294.4)			(860.0)	(1,434.7)
Intercompany assets	(1,119.8)			(1,429.3)	(1,461.9)
Total assets	(2,396.0)			(2,270.2)	(2,877.2)
Current liabilities:
Current portion of debt	(40.3)			(40.0)	(15.0)
Accounts payable	0.0			0.0	0.0
Other current liabilities	0.0			0.0	0.0
Total current liabilities	(40.3)			(40.0)	(15.0)
Long-term debt	(920.3)			(1,242.2)	(1,332.0)
Distributions in excess of investment in unconsolidated affiliate				0.0	0.0
Other liabilities	0.0			5.0	5.0
Equity investment in subsidiaries	(20.9)			(1.5)	(59.9)
Intercompany liabilities	(132.8)			(125.0)	(92.3)
Total liabilities	(1,114.3)			(1,403.7)	(1,494.2)
Total equity—controlling interest	(1,286.5)			(871.5)	(1,387.9)
Noncontrolling interest	4.8			5.0	4.9
Total equity	(1,281.7)			(866.5)	(1,383.0)
Total liabilities and equity	$ (2,396.0)			$ (2,270.2)	$ (2,877.2)