Subsequent Events	12 Months Ended
Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	20. Subsequent Events On October 9, 2019, the Company, and certain subsidiaries of the Company as guarantors, executed a private offering of $300.0 million aggregate principal at a rate of 4.500% per annum (the “2026 Senior Notes”) at an issue price of 100%. The 2026 Senior Notes mature on November 15, 2026. Interest is payable on May 15 and November 15 of each year, commencing on May 15, 2020. The 2026 Senior Notes and related subsidiary guarantees were offered and sold in a private transaction exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), to qualified institutional buyers in accordance with Rule 144A under the Securities Act and to non-U.S. persons outside of the United States pursuant to Regulation S under the Securities Act. The 2026 Senior Notes and related subsidiary guarantees have not been, and will not be, registered under the Securities Act or the securities laws of any state or other jurisdiction, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and other applicable securities laws. On October 28, 2019, the Company used the net proceeds from the offering, together with cash on hand and available borrowings under its existing senior secured asset based revolving credit facility (the “2023 ABL”), to redeem all $300.0 million aggregate principal amount outstanding of its 6.375% senior secured notes due 2023 (the “2023 Senior Notes”) at a redemption price of 103.188% and to pay all related accrued interest, fees and expenses. The intent of the transaction was to take advantage of lower market interest rates by refinancing the existing 2023 Senior Notes with the 2026 Senior Notes. The Company has accounted for the re-finance as a debt extinguishment of the 2023 Senior Notes and an issuance of the 2026 Senior Notes. As a result, the Company will record an estimated loss on extinguishment of $14.7 million in the first fiscal quarter of fiscal year 2020.

Subsequent Events

12 Months Ended

Sep. 30, 2019

20. Subsequent Events

On October 9, 2019, the Company, and certain subsidiaries of the Company as guarantors, executed a private offering of $300.0 million aggregate principal at a rate of 4.500% per annum (the “2026 Senior Notes”) at an issue price of 100%. The 2026 Senior Notes mature on November 15, 2026. Interest is payable on May 15 and November 15 of each year, commencing on May 15, 2020.

The 2026 Senior Notes and related subsidiary guarantees were offered and sold in a private transaction exempt from the registration requirements of the Securities Act of 1933, as amended (the “Securities Act”), to qualified institutional buyers in accordance with Rule 144A under the Securities Act and to non-U.S. persons outside of the United States pursuant to Regulation S under the Securities Act. The 2026 Senior Notes and related subsidiary guarantees have not been, and will not be, registered under the Securities Act or the securities laws of any state or other jurisdiction, and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and other applicable securities laws.

On October 28, 2019, the Company used the net proceeds from the offering, together with cash on hand and available borrowings under its existing senior secured asset based revolving credit facility (the “2023 ABL”), to redeem all $300.0 million aggregate principal amount outstanding of its 6.375% senior secured notes due 2023 (the “2023 Senior Notes”) at a redemption price of 103.188% and to pay all related accrued interest, fees and expenses.

The intent of the transaction was to take advantage of lower market interest rates by refinancing the existing 2023 Senior Notes with the 2026 Senior Notes. The Company has accounted for the re-finance as a debt extinguishment of the 2023 Senior Notes and an

issuance of the 2026 Senior Notes. As a result, the Company will record an estimated loss on extinguishment of $14.7 million in the first fiscal quarter of fiscal year 2020.