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Related -Party Transactions - Additional Information (Detail) - USD ($) |  |  |  |  |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended |
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Nov. 12, 2020 | Sep. 30, 2020 | Aug. 13, 2020 | Jul. 02, 2020 | Jun. 11, 2020 | May 28, 2020 | Apr. 17, 2020 | Jul. 31, 2018 | Jul. 31, 2018 | Jun. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2021 | Dec. 31, 2020 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Receivable from Employees for purchase of Common Stock |  |  |  |  |  |  |  |  |  | $ 2,400,000 | $ 2,400,000 | $ 2,400,000 |  | $ 2,700,000 |  |
Sponsor Note, face amount |  |  |  |  |  |  |  |  |  | 908,700,000 | $ 908,700,000 | 908,700,000 |  | 724,300,000 |  |
Proceeds from promissory note |  |  |  |  |  |  |  |  |  |  |  | 218,800,000 | $ 300,000 | 98,800,000 | $ 596,800,000 |
Repayment of notes to affiliate |  |  |  |  |  |  |  |  |  |  |  | 14,800,000 |  | $ 13,400,000 | 560,200,000 |
GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of founder shares rights |  |  |  |  |  |  |  |  |  |  | to transfer, assign or sell any Founder Shares held by them until the earlier to occur of: (i) one year after the completion of the Initial Business Combination, (ii) the last sale price of Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Initial Business Combination, and (iii) the date following the completion of the Initial Business Combination on which the Company completes a liquidation,merger, stock exchange, reorganization or other similar transaction that results in all of the public stockholders having the right to exchange their shares of common stock for cash, securities or other property. |  | to transfer, assign or sell any Founder Shares held by them until the earlier to occur of: (i) one year after the completion of the Initial Business Combination, (ii) the last sale price of Class A common stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading day period commencing at least 150 days after the Initial Business Combination, and (iii) the date following the completion of the Initial Business Combination on which the Company completes a liquidation, merger, stock exchange, reorganization or other similar transaction that results in all of the public stockholders having the right to exchange their shares of common stock for cash, securities or other property. |  |  |
Founder shares be transferred, assigned or sold, last sale price of Class A common stock equals or exceeds |  |  |  |  |  |  |  |  |  |  | $ 12.00 |  | $ 12.00 |  |  |
Proceeds from public offering deposited in the trust account |  |  |  |  |  |  |  |  |  | 750,085,956 | $ 750,085,956 | 750,085,956 | $ 750,063,158 |  |  | $ 0
Payment to affiliate of the Sponsor per month |  |  |  |  |  |  |  |  |  | 10,000 | 10,000 | 10,000 | 10,000 |  |  |
Repayment of notes to affiliate |  |  |  |  |  |  |  |  |  |  |  |  | 300,000 |  |  |
Related Party Transaction, Amounts of Transaction | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant liabilities |  |  |  |  |  |  |  |  |  | 21,194,049 | 21,194,049 | 21,194,049 | 23,676,615 |  |  |
Fair value, liability, recurring basis, still held, unrealized gain (loss) |  |  |  |  |  |  |  |  |  |  | $ 2,482,566 |  |  |  |  |
Transfer of membership interests to certain individuals |  |  |  |  |  |  |  |  |  |  | 8,100,000 |  |  |  |  |
Working capital note |  |  |  |  |  |  |  |  |  | 2,000,000 | $ 2,000,000 | 2,000,000 | 0 |  |  |
Underwriting commission as a percentage of proceeds from initial public offer |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Payment of underwriting commission |  |  |  |  |  |  |  |  |  |  | $ 15,000,000 |  |  |  |  |
Deferred underwriting discount |  |  |  |  |  |  |  |  |  | $ 26,250,000 | $ 26,250,000 | $ 26,250,000 | $ 26,250,000 |  |  | $ 0
GS Acquisition Holdings Corp II [Member] | Director [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Transfer of membership interests to related parties |  |  | 140,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Private Placement [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants purchased by sponsor |  |  |  |  |  |  |  |  |  | 8,500,000 | 8,500,000 | 8,500,000 | 8,500,000 |  |  |
Warrant exercise price per share |  |  |  |  |  |  |  |  |  | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 |  |  |
Common Class A [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding |  |  |  |  |  |  |  |  |  | 1,483,795 | 1,483,795 | 1,483,795 |  | 1,483,795 |  |
Common Class A [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued to director on appointment |  |  |  |  |  |  |  |  |  |  | 75,000,000 |  | 75,000,000 |  |  |
Common Class B [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding |  |  |  |  |  |  |  |  |  | 5,353,970 | 5,353,970 | 5,353,970 |  | 5,353,970 |  |
Common Class B [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, value, new issues |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |
Common stock, shares outstanding |  |  | 18,750,000 |  |  |  |  |  |  | 18,750,000 | 18,750,000 | 18,750,000 | 18,750,000 |  |  | 20,125,000
Charterhouse Capital Partners L L P [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maagement fees |  |  |  |  |  |  |  |  |  |  |  | $ 100,000 |  |  |  |
Payment for Professional fees and expense reimbursements |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  | $ 300,000 | $ 200,000 |
GSAM [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Founder Shares are subject to forfeiture |  | 2,625,000 |  |  |  |  |  |  | 1,375,000 |  | 2,625,000 |  |  |  |  |
GSAM [Member] | Senior Notes [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sponsor Note, face amount |  |  |  |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |
Proceeds from promissory note |  |  |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |  |
GSAM [Member] | Common Class B [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued to director on appointment |  |  |  |  |  |  |  | 575 | 575 |  |  |  |  |  |  |
Stock issued during period, value, new issues |  |  |  |  |  |  |  |  | $ 5,000 |  |  |  |  |  |  |
Stock split ratio |  |  |  |  |  |  |  | 1:5000 | 1:5000 |  |  |  |  |  |  |
Stock issued during period, Stock split |  | 20,125,000 |  |  | 20,125,000 |  | 2,875,000 |  |  |  | 20,125,000 |  |  |  |  |
Sale of stock, number of shares issued in transaction |  |  |  |  |  |  |  |  | 1,325,000 |  |  |  |  |  |  |
Percentage of founder shares |  | 20.00% |  |  |  |  |  | 20.00% | 20.00% |  | 20.00% |  |  |  |  |
GS DC Sponsor I LLC [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares in each unit |  |  |  |  |  |  |  |  |  |  | 1 |  | 1 |  |  |
Proceeds from public offering deposited in the trust account |  |  |  |  |  |  |  |  |  | $ 750,000,000 | $ 750,000,000 | $ 750,000,000 | $ 750,000,000 |  |  |
GS DC Sponsor I LLC [Member] | Private Placement [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock issued during period, value, new issues |  |  |  |  |  |  |  |  |  |  | $ 17,000,000 |  | $ 17,000,000 |  |  |
Warrants purchased by sponsor |  |  |  |  |  |  |  |  |  | 8,500,000 | 8,500,000 | 8,500,000 | 8,500,000 |  |  |
Share price |  |  |  |  |  |  |  |  |  | $ 2.00 | $ 2.00 | $ 2.00 | $ 2.00 |  |  |
Warrant exercise price per share |  |  |  |  |  |  |  |  |  | $ 11.50 | $ 11.50 | 11.50 | $ 11.50 |  |  |
Sponsor [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayment of notes to affiliate |  |  |  | $ 300,000 |  |  |  |  |  |  |  |  |  |  |  |
Administrative Support Agreement [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related party transaction expenses |  |  |  |  |  |  |  |  |  | $ 30,000 | $ 60,000 |  | $ 60,000 |  |  |
Goldman Sachs Asset Management [Member] | Common Class A [Member] | GS Acquisition Holdings Corp II [Member] | Subscription Agreement Member [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  |  |
Sale of stock, consideration received on transaction |  |  |  |  |  |  |  |  |  |  | $ 200,000,000 |  |  |  |  |
Goldman Sachs Asset Management [Member] | Common Class A [Member] | GS Acquisition Holdings Corp II [Member] | Backstop Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of stock, number of shares issued in transaction |  |  |  |  |  |  |  |  |  |  | 12,500,000 |  |  |  |  |
Sale of stock, price per share |  |  |  |  |  |  |  |  |  | $ 10.00 | $ 10.00 | $ 10.00 |  |  |  |
Threshold amount for calculating cash shortfall |  |  |  |  |  |  |  |  |  | $ 1,310,000,000 | $ 1,310,000,000 | $ 1,310,000,000 |  |  |  |
Affiliate Of The Sponsor [Member] | GS Acquisition Holdings Corp II [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of underwriting commission |  |  |  |  |  |  |  |  |  |  | 11,250,000 |  |  |  |  |
Deferred underwriting discount |  |  |  |  |  |  |  |  |  | $ 19,687,500 | $ 19,687,500 | $ 19,687,500 |  |  |  |

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