Summary of Significant Accounting Policies - Additional Information (Details)		1 Months Ended				12 Months Ended
	Jan. 19, 2021 USD ($) $ / shares shares	Mar. 31, 2022	Jun. 30, 2021 USD ($) $ / shares shares	Jan. 18, 2021 shares	Mar. 31, 2016 USD ($) Agreement	Jan. 29, 2022 USD ($) CareCenter State Segment	Jan. 30, 2021 USD ($)	Feb. 01, 2020 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of care centers | CareCenter						1,433
Number of states in which the entity operates | State						50
Net proceeds from issuance of common stock	$ 936,000,000.0
Credit and debit card receivables from banks included in cash and cash equivalents						$ 35,900,000	$ 34,600,000
Number of reporting units | Segment						1
Joint venture management fees						$ 2,500,000	2,000,000.0	$ 1,400,000
Advertising expenses						227,900,000	168,400,000	97,700,000
Advertising expense adjustments upon reimbursement of vendor cooperative advertising						$ 32,500,000	25,700,000	$ 18,400,000
Number of interest rate cap agreements | Agreement					5
Derivative, notional value					$ 1,950,000,000.0
Derivative, maturity date					Jan. 29, 2021
London Interbank Offered Rate (LIBOR)
Summary Of Significant Accounting Policies [Line Items]
Derivative, cap interest rate					2.25%
Variable Interest Entities, Primary Beneficiary
Summary Of Significant Accounting Policies [Line Items]
VIEs' ownership percentage						50.00%
Variable Interest Entities, Primary Beneficiary | Subsequent Event
Summary Of Significant Accounting Policies [Line Items]
VIEs' agreement to purchase remaining ownership percentage		50.00%
Mexico Joint Venture
Summary Of Significant Accounting Policies [Line Items]
Equity method investment, ownership percentage						50.00%
Accrued Expenses And Other Liabilities
Summary Of Significant Accounting Policies [Line Items]
Accrued offering expenses	$ 3,800,000
Accounts Payable And Book Overdrafts
Summary Of Significant Accounting Policies [Line Items]
Book overdrafts						$ 61,500,000	52,500,000
Other Current Assets
Summary Of Significant Accounting Policies [Line Items]
Self-insurance reserves						5,700,000	5,800,000
Other Long-term Assets
Summary Of Significant Accounting Policies [Line Items]
Self-insurance reserves						15,900,000	17,200,000
Other Noncurrent Liabilities
Summary Of Significant Accounting Policies [Line Items]
Asset retirement obligations						$ 6,900,000	$ 5,800,000
Class A Common Stock
Summary Of Significant Accounting Policies [Line Items]
Conversion to Delaware corporation (Note1) (in shares) | shares				171,200,000
Issuance of common stock (in shares) | shares	55,200,000
Offering price per share | $ / shares	$ 18.00
Class A Common Stock | Scooby Aggregator, LP
Summary Of Significant Accounting Policies [Line Items]
Issuance of common stock (in shares) | shares			25,300,000
Offering price per share | $ / shares			$ 24.00
Net proceeds from issuance of common stock			$ 0
Common Class B-1
Summary Of Significant Accounting Policies [Line Items]
Conversion to Delaware corporation (Note1) (in shares) | shares				37,800,000
Common Class B-2
Summary Of Significant Accounting Policies [Line Items]
Conversion to Delaware corporation (Note1) (in shares) | shares				37,800,000