BUSINESS COMBINATION - Estimated Fair Values of Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 08, 2022	Apr. 17, 2022	Oct. 03, 2021	Sep. 27, 2020
Liabilities:
Goodwill		$ 329,758	$ 47,774	$ 47,161
Cash acquired from acquisition	$ 12,068
Del Taco
Business Acquisition [Line Items]
Total preliminary aggregate purchase consideration, net of $12,068 cash acquired	581,241
Assets:
Accounts and other receivables	3,809
Inventories	3,233
Prepaid expenses	2,950
Other current assets	105
Property and equipment	150,826
Operating lease right-of-use assets	349,489
Intangible assets	12,371
Other assets	5,128
Liabilities:
Current maturities of long-term debt	22
Current operating lease liabilities	21,991
Accounts payable	18,808
Accrued liabilities	66,739
Long-term debt, net of current maturities	349
Long-term operating lease liabilities, net of current portion	302,688
Deferred tax liabilities	88,203
Other long-term liabilities	13,080
Net assets acquired, excluding goodwill	299,531
Goodwill	281,710
Del Taco | Trademarks
Assets:
Intangible assets	$ 283,500