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Subsequent Events - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	Jul. 02, 2021	Jul. 01, 2021	Jun. 30, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Common Stock, Shares Authorized			264,720,000	264,720,000
Common Stock, Par or Stated Value Per Share			$ 0.001	$ 0.001
Subsequent Event [Member]
Subsequent Event [Line Items]
Proceeds from IPO and Private Placement	$ 666.9
Conversion of Stock, Shares Converted	23,081,080
Conversion of Stock, Amount Converted	$ 70.9
Conversion of Stock, Shares Issued	46,162,160
Common Stock, Shares Authorized	1,000,000,000
Common Stock, Par or Stated Value Per Share	$ 0.001
Preferred Stock, Shares Authorized	100,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.001
Number of shares cancelled in shares buyback program		60,405
Subsequent Event [Member] | 2018 Term Loan [Member]
Subsequent Event [Line Items]
Repayments of Debt		$ 521.6
Payment for Debt Prepayment Cost		13.6
Subsequent Event [Member] | 2018 Revolving Facility [Member]
Subsequent Event [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		150.0
Gain (Loss) on Extinguishment of Debt		7.7
Subsequent Event [Member] | 2021 Revolving Facility [Member]
Subsequent Event [Line Items]
Letters of credit loans available		20.0
Swingline loans available		$ 10.0
Subsequent Event [Member] | IPO [Member]
Subsequent Event [Line Items]
Sale of Stock, Number of Shares Issued in Transaction	19,121,000
Share Price	$ 0.001
Sale of Stock, Price Per Share	$ 28.00
Subsequent Event [Member] | Private Placement [Member]
Subsequent Event [Line Items]
Sale of Stock, Number of Shares Issued in Transaction	3,214,285
Proceeds from Issuance of Common Stock	$ 85.0
Subsequent Event [Member] | Nderwriters Option [Member]
Subsequent Event [Line Items]
Sale of Stock, Number of Shares Issued in Transaction	2,868,150

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