LONG-TERM DEBT - Narrative (Details) £ in Thousands, $ in Thousands				1 Months Ended	3 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2023 GBP (£)	Jan. 24, 2022 USD ($)	Nov. 30, 2012	Dec. 31, 2023 USD ($)	Dec. 31, 2022	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2022 AUD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2023 CAD ($)	Dec. 31, 2023 AUD ($)	Sep. 28, 2023 USD ($)	Aug. 01, 2023 USD ($)	Jul. 31, 2023 USD ($)	Mar. 01, 2023 AUD ($)	Feb. 28, 2023 AUD ($)	Sep. 30, 2022 AUD ($)	Jul. 31, 2018 GBP (£)
Debt Instrument [Line Items]
Repurchase of debt instrument, discount rate								91.82%										91.82%
Debt outstanding					$ 1,458,736,000		$ 1,489,812,000
Long-term debt					1,439,509,000		$ 1,469,529,000
Revolving Credit Facility | Ames UK
Debt Instrument [Line Items]
Face amount | £																			£ 5,000
Debt outstanding															$ 0
Long-term line of credit, revolver outstanding balance					0
Revolving Credit Facility | Northcote Holdings Pty. Ltd
Debt Instrument [Line Items]
Maximum borrowing capacity																		$ 20,000,000
Line of credit facility, cancelled																		20,000,000
Revolver due 2025
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 500,000,000	400,000,000
Line of credit facility, incremental minimum borrowing amount														500,000,000	375,000,000
Outstanding standby letters of credit					$ 12,962,000
Maximum percentage of equity interest of subsidiaries borrowings guaranteed					65.00%
Revolver due 2025 | Letter of Credit Subfacility
Debt Instrument [Line Items]
Maximum borrowing capacity														125,000,000	$ 100,000,000
Revolver due 2025 | Multicurrency Subfacility
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 200,000,000
Revolver Due 2025, SOFR Loan
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage					7.46%						7.46%	7.46%
Revolver Due 2025, SOFR Loan | Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate						2.00%
Revolver Due 2025, Base Rate Loan
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage					9.50%						9.50%	9.50%
Revolver Due 2025, Base Rate Loan | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate						1.00%
Revolver Due 2025, SONIA Loan
Debt Instrument [Line Items]
Debt instrument, interest rate, effective percentage					7.22%						7.22%	7.22%
Revolver Due 2025, SONIA Loan | SONIA
Debt Instrument [Line Items]
Basis spread on variable rate					2.00%
Revolver Due 2028
Debt Instrument [Line Items]
Remaining borrowing capacity					$ 465,538,000
Term Loan | Ames UK
Debt Instrument [Line Items]
Face amount | £																			14,000
Repayments of debt	$ 9,543,000	£ 7,525
Term Loan | Northcote Holdings Pty. Ltd
Debt Instrument [Line Items]
Repayments of debt									$ 9,625,000
Long-term debt																		18,375,000
Mortgages | Ames UK
Debt Instrument [Line Items]
Face amount | £																			£ 4,000
Receivables Purchase Facility | Northcote Holdings Pty. Ltd
Debt Instrument [Line Items]
Maximum borrowing capacity																$ 30,000	$ 15,000,000	$ 15,000,000
Debt instrument, interest rate, effective percentage					5.56%						5.56%	5.56%
Remaining borrowing capacity					$ 20,511,000							$ 30,000,000
Long-term line of credit					$ 0
Receivables Purchase Facility | Bank Bill Swap Rate | Northcote Holdings Pty. Ltd
Debt Instrument [Line Items]
Basis spread on variable rate					1.25%
Senior notes due 2028
Debt Instrument [Line Items]
Face amount										$ 1,000,000,000
Debt instrument, interest rate, stated percentage					5.75%		5.75%			5.75%	5.75%	5.75%
Capitalized debt issuance costs										$ 16,448,000
Debt instrument, repurchased face amount								$ 25,225,000,000
Debt instrument, repurchase amount								23,161,000,000
Debt outstanding					$ 974,775,000		$ 974,775,000
Debt issuance fees and expenses, net					8,415,000
Long-term debt					966,566,000		966,073,000
Senior notes due 2028 | Fair Value, Inputs, Level 1
Debt Instrument [Line Items]
Senior note, fair value disclosure					945,532,000
Senior notes due 2022
Debt Instrument [Line Items]
Repayments of debt										$ 1,000,000,000
Debt instrument, interest rate, stated percentage										5.25%
Term Loan | Term Loan B due 2029
Debt Instrument [Line Items]
Face amount			$ 800,000,000
Capitalized debt issuance costs			$ 15,466,000
Debt issuance fees and expenses, net					$ 6,708,000
Debt instrument, interest rate, effective percentage					7.75%						7.75%	7.75%
Secured overnight financing rate floor			0.50%
Debt instrument, issuance price (in percentage)			99.75%
Debt instrument, periodic payment, principal					$ 2,000,000
Debt redeemed							25,000,000	300,000,000
Gain (loss) on extinguishment of debt							(437,000)	(6,296,000)
Write off of deferred debt issuance cost, underwriting and other fees							386,000	5,575,000
Write off of deferred debt issuance cost, original issuer discount							51,000	$ 721,000
Term Loan | Term Loan B due 2029 | Secured Overnight Financing Rate
Debt Instrument [Line Items]
Basis spread on variable rate			2.25%
Term Loan B due 2029
Debt Instrument [Line Items]
Debt outstanding					461,000,000		463,000,000
Long-term debt					453,412,000		$ 455,039,000
Term Loan B due 2029 | Fair Value, Inputs, Level 1
Debt Instrument [Line Items]
Senior note, fair value disclosure					462,153,000
Non US lines of credit
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 11,363,000						$ 15,000
Basis spread on variable rate				1.30%
Non US lines of credit | CORRA
Debt Instrument [Line Items]
Interest rate at period end					6.36%						6.36%	6.36%
Non US lines of credit | Bankers Acceptance Rate
Debt Instrument [Line Items]
Interest rate at period end					6.53%						6.53%	6.53%
Mortgages | Ames UK
Debt Instrument [Line Items]
Repayments of debt	$ 3,108,000	£ 2,451
Finance lease - real estate | Ocala, Florida
Debt Instrument [Line Items]
Payment to acquire leased property													$ 23,207,000
Lessee, finance Lease, discount rate													5.60%