Global Business Travel (GBTG) 10-K/A 29 Nov 21 2020 FY Annual report (amended) Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2020	Nov. 26, 2021	Jun. 30, 2020
Document Type	10-K/A
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Dec. 31, 2020
Entity File Number	001-39576
Entity Registrant Name	Apollo Strategic Growth Capital
Entity Incorporation, State or Country Code	CA
Entity Tax Identification Number	98-0598290
Entity Address, Address Line One	9 West 57th Street
Entity Address, Address Line Two	43rd Floor
Entity Address, City or Town	New York
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	10019
City Area Code	212
Local Phone Number	515-3200
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
ICFR Auditor Attestation Flag	false
Entity Shell Company	true
Entity Public Float			$ 0
Entity Central Index Key	0001820872
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	FY
Amendment Flag	true
Amendment Description	Apollo Strategic Growth Capital (the “Company,” “we”, “our” or “us”) is filing this Annual Report on Form 10-K/A (“Amendment No. 2”, the “Amendment” or this “Annual Report”), to amend our Amendment No. 1 to the Annual Report on Form 10-K/A for the period ended December 31, 2020, as filed with the Securities and Exchange Commission (the “SEC”) on June 21, 2021 (the “First Amended Filing”), to restate our financial statements for the period ended December 31, 2020.
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Units, each consisting of one Class A ordinary share, $0.00005 par value, and one-third of one warrant
Title of 12(b) Security	Units, each consisting of one Class A ordinary share, $0.00005 par value, and one-third of one warrant
Trading Symbol	APSG.U
Security Exchange Name	NYSE
Class A ordinary shares
Title of 12(b) Security	Class A ordinary shares
Trading Symbol	APSG
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		81,681,000
Warrants
Title of 12(b) Security	Warrants
Trading Symbol	APSG WS
Security Exchange Name	NYSE
Class B ordinary shares
Entity Common Stock, Shares Outstanding		20,420,250

BALANCE SHEETS

BALANCE SHEETS - USD ($)	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash	$ 257,872
Prepaid expenses	1,125,255	$ 1,854
Total current assets	1,383,127	1,854
Investment held in Trust Account	816,985,533
Total Assets	818,368,660	1,854
Current liabilities:
Accounts payable and accrued expenses	383,164
Advances from related party	373,517
Note payable - Sponsor	1,500,000
Total current liabilities	2,256,681
Derivative warrant liability	74,642,310
Deferred underwriting commissions	28,588,350
Total liabilities	105,487,341
COMMITMENTS AND CONTINGENCIES (NOTE 7)
Class A ordinary shares subject to possible redemption; 81,681,000 and 0 shares at December 31, 2020 and 2019, respectively (at approximately $10.00 per share)	816,810,000
Shareholders' Equity (Deficit):
Preferred shares, $0.00005 par value; 1,000,000 shares authorized; none issued and outstanding
Additional paid-in capital		30,881
Accumulated deficit	(103,929,702)	(30,048)
Total shareholders' equity (deficit)	(103,928,681)	1,854
Total Liabilities, Temporary Equity and Shareholders' Equity (Deficit)	818,368,660	1,854
Class B ordinary shares
Shareholders' Equity (Deficit):
Ordinary shares	$ 1,021	$ 1,021

BALANCE SHEETS (Parenthetical)

BALANCE SHEETS (Parenthetical) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Preferred stock, par value	$ 0.00005	$ 0.00005
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Class A ordinary shares
Shares subject to possible redemption	81,681,000	0
Shares subject to possible redemption, redemption value per share	$ 10	$ 10
Common stock, par value	$ 0.00005	$ 0.00005
Common stock, shares authorized	300,000,000	300,000,000
Common stock, shares issued	0	0
Common stock, shares outstanding	0	0
Class B ordinary shares
Common stock, par value	$ 0.00005	$ 0.00005
Common stock, shares authorized	60,000,000	60,000,000
Common stock, shares issued	20,420,250	20,420,250
Common stock, shares outstanding	20,420,250	20,420,250

STATEMENTS OF OPERATIONS

STATEMENTS OF OPERATIONS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
REVENUE	$ 0	$ 0
EXPENSES
Administrative fee - related party	46,669
General and administrative expenses	536,614	1,853
TOTAL EXPENSES	583,283	1,853
OTHER INCOME (EXPENSE)
Interest expense	(414)
Investment income from Trust Account	175,533
Transaction costs allocable to warrant liability	(2,344,508)
Change in fair value of derivative warrants	(16,889,088)
TOTAL OTHER EXPENSE	(19,058,477)
Net loss	$ (19,641,760)	$ (1,853)
Class A ordinary shares
OTHER INCOME (EXPENSE)
Weighted average shares outstanding of ordinary shares	18,828,526
Basic and diluted net loss per share	$ (0.52)
Class B ordinary shares
OTHER INCOME (EXPENSE)
Weighted average shares outstanding of ordinary shares	18,983,377	18,750,000
Basic and diluted net loss per share	$ (0.52)	$ 0

STATEMENTS OF CHANGES IN SHAREH

STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (DEFICIT) - USD ($)	Class B ordinary sharesCommon Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at the beginning at Dec. 31, 2018	$ 1,078	$ 27,117	$ (28,195)
Balance at the beginning (in shares) at Dec. 31, 2018	21,562,500
Capital contributions		3,707		$ 3,707
Net loss			(1,853)	(1,853)
Balance at the ending at Dec. 31, 2019	$ 1,078	30,824	(30,048)	1,854
Balance at the ending (in shares) at Dec. 31, 2019	21,562,500
Excess of proceeds received over fair value of private warrant liabilities		328,959		328,959
Forfeiture of Class B ordinary shares by Sponsor	$ (57)	57
Forfeiture of Class B ordinary shares by Sponsor (in shares)	(1,142,250)
Accretion of Class A ordinary shares subject to possible redemption amount		$ (359,840)	(84,257,894)	(84,617,734)
Net loss			(19,641,760)	(19,641,760)
Balance at the ending at Dec. 31, 2020	$ 1,021		$ (103,929,702)	$ (103,928,681)
Balance at the ending (in shares) at Dec. 31, 2020	20,420,250

STATEMENTS OF CASH FLOWS

STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash Flows From Operating Activities:
Net loss	$ (19,641,760)	$ (1,853)
Adjustments to reconcile net loss to net cash used in operating activities:
Investment income earned on investment held in Trust Account	(175,533)
Formation and organization costs paid by related parties	27,607	3,707
Costs associated with warrant liabilities	2,344,508
Gain on change in fair value of derivative liabilities	16,889,088
Changes in operating assets and liabilities:
Prepaid expenses	(1,123,401)	(1,854)
Accounts payable and accrued expenses	(761,757)
Net Cash Used In Operating Activities	(2,441,248)	0
Cash Flows From Investing Activities:
Cash deposited into Trust Account	(816,810,000)
Net Cash Used In Investing Activities	(816,810,000)
Cash Flows From Financing Activities:
Proceeds from sale of Units in Public Offering	816,810,000
Proceeds from sale of Private Placement Warrants	18,336,200
Payment of underwriter commissions	(16,336,200)
Payment of offering costs	(800,880)
Proceeds from Sponsor note	1,500,000
Net Cash Provided By Financing Activities	819,509,120	0
Net change in cash	257,872
Cash at beginning of year	0	0
Cash at end of year	257,872	0
Supplemental disclosure of non-cash financing activities:
Deferred underwriters' commissions charged to additional paid-in capital in connection with the Public Offering	28,588,350
Operating costs paid by related party which were charged to additional paid-in capital	345,910	$ 3,707
Initial classification of fair value of Public warrants	39,745,978
Accrued offering costs which were charged to additional paid-in capital	$ 1,144,924

Description of Organization and

Description of Organization and Business Operations	12 Months Ended
	Dec. 31, 2020
Description of Organization and Business Operations
Description of Organization and Business Operations	1. Description of Organization and Business Operations Organization and General Apollo Strategic Growth Capital (formerly known as APH III (Sub I), Ltd.) (the “ Company we us our Initial Business Combination Securities Act JOBS Act st At December 31, 2020, the Company had not commenced any operations. All activity for the period from January 1, 2019 through December 31, 2020 relates to the Company’s formation and the initial public offering (the “ Public Offering Sponsor and Public Offering On October 6, 2020, the Company consummated the Public Offering of 75,000,000 units, $0.00005 par value at a price of $10.00 per unit (the “Units” Sponsor Private Placement Warrants Trust Account On November 10, 2020, the Company consummated the closing of the sale of 6,681,000 additional Units at a price of $10 per unit upon receiving notice of the underwriters’ election to partially exercise their overallotment option ( “Overallotment Units” The Company intends to finance its Initial Business Combination with proceeds from the Public Offering, the Private Placement, debt or a combination of the foregoing. Trust Account The proceeds held in the Trust Account are invested only in U.S. government securities with a maturity of one hundred eighty (180) days or less or in money market funds that meet certain conditions under Rule 2a-7 under the Investment Company Act of 1940, as amended, and that invest only in direct U.S. government treasury obligations, as determined by the Company. Funds will remain in the Trust Account until the earlier of (i) the consummation of the Initial Business Combination or (ii) the distribution of the Trust Account proceeds as described below. The remaining proceeds outside the Trust Account may be used to pay for business, legal and accounting due diligence on prospective acquisitions and continuing general and administrative expenses. The Company’s amended and restated memorandum and articles of association provides that, other than the withdrawal of interest to pay its tax obligations (the “ Permitted Withdrawals Public Shares Completion Window Initial Business Combination The Company’s management has broad discretion with respect to the specific application of the net proceeds of the Public Offering, although substantially all of the net proceeds of the Public Offering are intended to be generally applied toward consummating an Initial Business Combination. The Initial Business Combination must occur with one or more target businesses that together have a fair market value of at least 80% of the assets held in the Trust Account (excluding the deferred underwriting discounts and commissions and taxes payable on interest earned on the Trust Account) at the time of the agreement to enter into the Initial Business Combination. Furthermore, there is no assurance that the Company will be able to successfully effect an Initial Business Combination. The Company, after signing a definitive agreement for an Initial Business Combination, will either (i) seek shareholder approval of the Initial Business Combination at a meeting called for such purpose in connection with which shareholders may seek to redeem their Public Shares, regardless of whether they vote for or against the Initial Business Combination, for cash equal to their pro rata share of the aggregate amount on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to the Company to pay its franchise and income taxes, or (ii) provide shareholders with the opportunity to sell their Public Shares to the Company by means of a tender offer (and thereby avoid the need for a shareholder vote) for an amount in cash equal to their pro rata share of the aggregate amount on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to the Company to pay its franchise and income taxes. The decision as to whether the Company will seek shareholder approval of the Initial Business Combination or will allow shareholders to sell their Public Shares in a tender offer will be made by the Company, solely in its discretion, and will be based on a variety of factors such as the timing of the transaction and whether the terms of the transaction would otherwise require the Company to seek shareholder approval, unless a vote is required by law or under NYSE rules. If the Company seeks shareholder approval, it will complete its Initial Business Combination only if a majority of the outstanding ordinary shares voted are voted in favor of the Initial Business Combination. However, in no event will the Company redeem its Public Shares in an amount that would cause its net tangible assets to be less than $5,000,001. In such case, the Company would not proceed with the redemption of its Public Shares and the related Initial Business Combination, and instead may search for an alternate Initial Business Combination. If the Company holds a shareholder vote or there is a tender offer for shares in connection with an Initial Business Combination, a shareholder will have the right to redeem his, her or its Public Shares for an amount in cash equal to his, her or its pro rata share of the aggregate amount on deposit in the Trust Account as of two business days prior to the consummation of the Initial Business Combination, including interest not previously released to make Permitted Withdrawals. As a result, such Public Shares are recorded at redemption amount and classified as temporary equity upon the completion of the Public Offering, in accordance with the Financial Accounting Standards Board (“ FASB ASC Distinguishing Liabilities from Equity Pursuant to the Company’s amended and restated memorandum and articles of association, if the Company is unable to complete the Initial Business Combination within the Completion Window, the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but no more than ten In the event of a liquidation, dissolution or winding up of the Company after an Initial Business Combination, the Company’s shareholders are entitled to share ratably in all assets remaining available for distribution to them after payment of liabilities and after provision is made for each class of ordinary share, if any, having preference over the ordinary shares. The Company’s shareholders have no preemptive or other subscription rights. There are no sinking fund provisions applicable to the ordinary shares, except that the Company will provide its shareholders with the opportunity to redeem their Public Shares for cash equal to their pro rata share of the aggregate amount then on deposit in the Trust Account, upon the completion of the Initial Business Combination, subject to the limitations described herein. Going Concern Considerations, Liquidity and Capital Resources As of December 31, 2020, the Company had investments held in the Trust Account of $816,985,533 consisting principally of U.S. government securities. Interest income on the balance in the Trust Account may be used by us to pay taxes, and to pay up to $100,000 of any dissolution expenses. The Company does not have sufficient liquidity to meet its anticipated obligations over the next year from the date of issuance of these financial statements.In connection with the Company’s assessment of going concern considerations in accordance with Accounting Standards Update (“ ASU Disclosures of Uncertainties about an Entity’s Ability to Continue as a Going Concern The Company intends to use substantially all of the funds held in the Trust Account, including any amounts representing interest earned on the Trust Account, excluding the deferred underwriting commissions, to complete its Initial Business Combination. To the extent that capital stock or debt is used, in whole or in part, as consideration to complete the Initial Business Combination, the remaining proceeds held in the Trust Account will be used as working capital to finance the operations of the target business or businesses, make other acquisitions and pursue growth strategies. If an initial business combination agreement requires the Company to use a portion of the cash in the Trust Account to pay the purchase price, or requires the Company to have a minimum amount of cash at closing, the Company will need to reserve a portion of the cash in the Trust Account to meet such requirements, or arrange for third-party financing. The Company is required to complete an Initial Business Combination within the Completion Window. If the Company is unable to complete an Initial Business Combination within the Completion Window the Company will (i) cease all operations except for the purpose of winding up, (ii) as promptly as reasonably possible but not more than ten business days thereafter, and subject to having lawfully available funds therefore, redeem the public shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the trust account, including interest earned on the trust account deposits (which interest shall be net of taxes payable and less up to $100,000 to pay dissolution expenses), divided by the number of then-outstanding public shares, which redemption will completely extinguish the public shareholders’ rights as shareholders (including the right to receive further liquidation distributions, if any), subject to applicable law; and (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining shareholders and the Company’s board of directors, dissolve and liquidate, subject in each case to the Company’s obligations under Cayman Islands’ law to provide for claims of creditors and the requirements of other applicable law. The underwriters have agreed to waive their rights to their deferred underwriting commissions held in the trust account in the event the Company does not complete an Initial Business Combination within the Completion Window and, in such event, such amounts will be included with the funds held in the trust account that will be available to fund the redemption of the public shares. On October 20, 2020, the Sponsor executed a promissory note (the “ October Note On February 22, 2021, the Sponsor executed a promissory note (the “ February Note [ Recent Developments On April 12, 2021, the Acting Director of the Division of Corporation Finance and Acting Chief Accountant of the Securities and Exchange Commission (the “ SEC Staff Statement As a result, the Company evaluated the accounting treatment for its outstanding Warrants (as defined in Note 2) and concluded that it is required to measure the fair value of the Warrants at the end of each reporting period and recognize changes in the value from the prior period in the Company's operating results for the current period. These changes were reflected in the First Amended Filing.

Restatement of Previously Issue

Restatement of Previously Issued Financial Statements	12 Months Ended
	Dec. 31, 2020
Restatement of Previously Issued Financial Statements
Restatement of Previously Issued Financial Statements	2. Restatement of Previously Issued Financial Statements The Company previously accounted for its outstanding Public Warrants (as defined in Note 4) and Private Placement Warrants (collectively with the Public Warrants, the “ Warrants Warrant Agreement tender offer provision On April 12, 2021, the Acting Director of the Division of Corporation Finance and Acting Chief Accountant of the SEC together issued the Staff Statement. Specifically, the Staff Statement focused on certain settlement terms and provisions related to certain tender offers following a business combination, which terms are similar to those contained in the Warrant Agreement. In consideration of the Staff Statement, the Company’s management further evaluated the Warrants under ASC Subtopic 815-40, “ Contracts in Entity’s Own Equity”. As a result of the above, the Company should have classified the Warrants as derivative liabilities in its previously issued financial statement as of October 6, 2020 and December 31, 2021. Under this accounting treatment, the Company is required to measure the fair value of the Warrants at the end of each reporting period as well as re-evaluate the treatment of the warrants and recognize changes in fair value from the prior period in the Company’s operating results for the current period. The Company has followed ASC 480 in accounting for its Public Shares. This included recording the Public Shares in permanent equity on its balance sheet. However, the Company maintained shareholders’ equity of at least 2 In September 2021, the Company’s management re-evaluated and ultimately concluded that the classification of $5,000,001 in permanent equity was not appropriate and that the Public Shares should be reclassified as temporary equity. In connection with the preparation of the financial statements as of and for the three and nine months ended September 30, 2021 that were included in the Company’s Q3 Form 10-Q, the Company concluded that it would change its accounting and reflect the full amount of all redeemable Public Shares in temporary equity. This was a change from the Company’s previous accounting practice whereby it maintained shareholders’ equity of at least $5,000,001 as the Company will not redeem Public Shares that would cause the Company’s net tangible assets to be less than $5,000,001 following such redemptions. In connection with the change in presentation for the Public Shares subject to possible redemption, the Company also revised its earnings per share to allocate net income (loss) evenly to all Public Shares and Class B ordinary shares. On November 23, 2021, the Company’s management and the Audit Committee concluded that the Company’s previously issued financial statements for the Affected Periods, in each case, should be restated to classify all of the Public Shares as temporary equity and should no longer be relied upon. As a result, the Company is restating its financial statements for the Affected Periods herein for the Post-IPO Balance Sheet and the Company’s audited financial statements included in the First Amended Filing and in a Form 10-Q/A for the unaudited condensed financial statements for the periods ended March 31, 2021, June 30, 2021 and September 30, 2021. ​ 2 Note to Draft ​ Impact of the Restatement The change in the carrying value of the redeemable shares of Class A ordinary shares subject to possible redemption in the Post-IPO Balance Sheet resulted in a decrease of approximately $7.2 million in additional paid-in capital and an increase of approximately $144.4 million to accumulated deficit, as well as a reclassification of 15,155,185 Class A ordinary shares from permanent equity to temporary equity as presented below. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As ​ First Amended Filing Adjustments Restated Balance sheet as of October 6, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 751,199,121 ​ $ — ​ $ 751,199,121 Total liabilities ​ $ 80,940,965 ​ $ — ​ $ 80,940,965 Class A ordinary shares subject to redemption ​ 665,258,150 ​ $ 151,551,850 ​ $ 816,810,000 Shareholders’ equity (deficit) ​ ​ ​ ​ ​ ​ Class A ordinary shares ​ 424 ​ $ (424) ​ $ — Class B ordinary shares ​ 1,078 ​ $ — ​ $ 1,078 Additional paid-in capital ​ ​ 7,192,687 ​ $ (7,192,687) ​ $ — Accumulated deficit ​ ​ (2,194,183) ​ $ (144,358,739) ​ $ (146,552,922) Total shareholders’ equity (deficit) ​ $ 5,000,006 ​ $ (151,551,850) ​ $ (146,551,844) Total liabilities, temporary equity and shareholders’ equity (deficit) ​ $ 751,199,121 ​ $ — ​ $ 751,199,121 ​ The impact of the restatement on the audited balance sheet as of December 31, 2020 is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As ​ First Amended Filing Adjustments Restated Balance sheet December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 818,368,660 ​ $ — ​ $ 818,368,660 Total liabilities ​ $ 105,487,341 ​ $ — ​ $ 105,487,341 Class A ordinary shares subject to redemption ​ 707,881,310 ​ $ 108,928,690 ​ $ 816,810,000 Shareholders’ equity (deficit) ​ ​ ​ ​ ​ ​ Class A ordinary shares ​ 545 ​ (545) ​ — Class B ordinary shares ​ 1,021 ​ — ​ 1,021 Additional paid-in capital ​ ​ 24,670,251 ​ ​ (24,670,251) ​ ​ — Accumulated deficit ​ ​ (19,671,808) ​ ​ (84,257,894) ​ ​ (103,929,702) Total shareholders’ equity (deficit) ​ $ 5,000,009 ​ $ (108,928,690) ​ $ (103,928,681) Total liabilities, temporary equity and shareholders’ equity (deficit) ​ $ 818,368,660 ​ $ — ​ $ 818,368,660 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As Statement of Operations as of December 31, 2020 ​ First Amended Filing ​ Adjustments ​ Restated Net loss ​ ​ (19,641,760) ​ ​ — ​ ​ (19,641,760) Basic and diluted weighted average shares outstanding, Class A ordinary shares ​ ​ 78,961,988 ​ ​ (60,133,462) ​ ​ 18,828,526 Basic and diluted net income (loss) per share of Class A ordinary shares ​ $ 0.00 ​ $ (0.52) ​ $ (0.52) Weighted average number of shares of shares outstanding, Class A ordinary shares ​ ​ 18,983,377 ​ ​ — ​ ​ 18,983,377 Basic and diluted net loss per share of Class B ordinary shares ​ $ (1.04) ​ $ 0.52 ​ $ (0.52) ​

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies
Summary of Significant Accounting Policies	3. Summary of Significant Accounting Policies Basis of Presentation The accompanying financial statements of the Company are presented in U.S. dollars in conformity with accounting principles generally accepted in the United States of America (“ GAAP SEC Emerging Growth Company The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “ Securities Act JOBS Act Further, section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Securities Exchange Act of 1934, as amended (“ Exchange Act ​ Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting periods. Actual results could differ from those estimates. One of the more significant accounting estimates included in these financial statements is the determination of the fair value of the warrant liability. Such estimates may be subject to change as more current information becomes available and accordingly the actual results could differ significantly from those estimates. Concentration of Credit Risk Financial instruments that potentially subject the Company to concentration of credit risk consist of cash accounts in a financial institution which, at times, may exceed the federal depository insurance coverage of $250,000. The Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such accounts. Financial Instruments The fair value of the Company’s assets and liabilities, which qualify as financial instruments under FASB ASC 820, “ Fair Value Measurements and Disclosures Offering Costs The Company complies with the requirements of FASB ASC 340-10-S99-1 and SEC Staff Accounting Bulletin (“ SAB Expenses of Offering.” Income Taxes FASB ASC 740, “Income Taxes” There is currently no taxation imposed on income by the Government of the Cayman Islands. In accordance with Cayman income tax regulations, income taxes are not levied on the Company. Consequently, income taxes are not reflected in the Company’s financial statements. Class A Ordinary Shares Subject to Possible Redemption The Company accounts for its Class A ordinary shares subject to possible redemption in accordance with the guidance in ASC 480, “ Distinguishing Liabilities from Equity. The Company recognizes changes in redemption value immediately as they occur and adjusts the carrying value of redeemable ordinary shares to equal the redemption value at the end of each reporting period. Immediately upon the closing of the Public Offering, the Company recognized the accretion from initial book value to redemption amount value. The change in the carrying value of redeemable Class A ordinary shares resulted in charges against additional paid-in capital and accumulated deficit. The Class A ordinary shares reflected in the balance sheets are reconciled in the following table: ​ ​ ​ ​ ​ Gross proceeds $ 816,810,000 Less: ​ Proceeds allocated to Public Warrants ​ $ (39,745,978) Class A ordinary shares issuance costs ​ $ (44,871,756) Plus: ​ Accretion of carrying value to redemption value ​ $ 84,617,734 Class A ordinary shares subject to possible redemption ​ $ 816,810,000 ​ Net Income Per Ordinary Share The Company complies with accounting and disclosure requirements of ASC 260, “ Earnings Per Share. The calculation of diluted income (loss) per share does not consider the effect of the warrants issued in connection with the (i) Public Offering, and (ii) the private placement since the exercise of the warrants is contingent upon the occurrence of future events. As of December 31, 2020 and 2019, the Company did not have any dilutive securities or other contracts that could, potentially, be exercised or converted into ordinary shares and then share in the earnings of the Company. As a result, diluted net income (loss) per ordinary share is the same as basic net loss per ordinary share for the periods presented. The following table reflects the calculation of basic and diluted net income (loss) per ordinary share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ Year Ended ​ ​ December 31, 2020 ​ December 31, 2019 ​ Class A Class B Class A Class B Basic and diluted net loss per ordinary share ​ ​ ​ ​ ​ ​ ​ ​ Numerator: ​ ​ ​ ​ Allocation of net loss, as adjusted ​ $ (9,780,661) ​ $ (9,861,099) ​ $ — ​ $ (1,853) Denominator: ​ ​ ​ ​ Basic and diluted weighted average shares outstanding ​ 18,828,526 ​ 18,983,377 ​ — ​ 18,750,000 Basic and diluted net loss per ordinary share ​ $ (0.52) ​ $ (0.52) ​ $ — ​ $ (0.00) ​ Derivative Financial Instruments The Company evaluates its financial instruments to determine if such instruments are derivatives or contain features that qualify as embedded derivatives in accordance with ASC Topic 815, “ Derivatives and Hedging Fair Value Measurement Warrant Instruments The Company accounts for the warrants issued in connection with the Initial Public Offering and Private Placement in accordance with the guidance contained in FASB ASC 815 “ Derivatives and Hedging Fair Value Measurements Fair value is defined as the price that would be received for sale of an asset or paid to transfer of a liability, in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers include: ● Level 1, defined as observable inputs such as quoted prices (unadjusted) for identical instruments in active markets; ● Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable such as quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active; and ● Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, such as valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Recent Accounting Standards Management does not believe that any recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statements. Recent Accounting Pronouncements In August 2020, the FASB issued Accounting Standards Update ("ASU") No. 2020-06, Debt --Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging --Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity Management does not believe that any recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statements.

Public Offering

Public Offering	12 Months Ended
	Dec. 31, 2020
Public Offering
Public Offering	4. Public Offering On October 6, 2020, the Company sold 75,000,000 units at a price of $10.00 per unit (the “ Units Each Unit consists of one share of the Company’s Class A ordinary shares, $0.00005 par value, and one-third of one warrant (each, a “ Warrant Warrants Public Warrants The Company paid an underwriting discount of 2.0% of the per Unit offering price, or $15,000,000 in the aggregate, to the underwriters at the closing of the Public Offering, with an additional fee (the “ Deferred Discount

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2020
Related Party Transactions
Related Party Transactions	5. Related Party Transactions Founder Shares In October 2008, the Company was formed by Apollo Principal Holdings III, L.P. (“ Holdings Founder Shares The Founder Shares are identical to the Class A ordinary shares included in the Units sold in the Public Offering except that the Founder Shares are Class B ordinary shares which automatically convert into Class A ordinary shares at the time of the Company’s Initial Business Combination and are subject to certain transfer restrictions, as described in more detail below. The holders of the Founder Shares agreed, subject to limited exceptions, not to transfer, assign or sell any of their Founder Shares until the earlier to occur of: (A) one year after the completion of the Initial Business Combination or (B) subsequent to the Initial Business Combination, (x) if the last sale price of the Company’s Class A ordinary shares equals or exceeds $12.00 per share (as adjusted for share splits, share 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, or (y) the date on which the Company completes a liquidation, merger, share exchange or other similar transaction that results in all of the Company’s shareholders having the right to exchange their ordinary shares for cash, securities or other property. Private Placement Concurrently with the closing of the Public Offering, the Sponsor purchased an aggregate of 11,333,334 Warrants (the “ Private Placement Warrants The Sponsor and the Company’s officers and directors agreed, subject to limited exceptions, not to transfer, assign or sell any of their Private Placement Warrants until 30 days after the completion of the Initial Business Combination. Related Party Loans On August 11, 2020, the Sponsor agreed to loan the Company an aggregate of up to $750,000 to cover expenses related to the Public Offering pursuant to an unsecured promissory note (the “ Note On October 20, 2020, the Sponsor executed the October Note to loan the Company an aggregate principal amount of $1,500,000. The October Note bears interest at a rate of 0.14% per annum and is payable on the earlier of an Initial Business Combination or the liquidation of the Company. On October 20, 2020, the Company borrowed $1,500,000 pursuant to the October Note. As of December 31, 2020, the outstanding balance on the October Note was $1,500,000. On February 22, 2021, the Sponsor executed the February Note to loan the Company an aggregate principal amount of $800,000. The February Note bears interest at a rate of 0.12% per annum and is payable on the earlier of an Initial Business Combination or the liquidation of the Company. On February 22, 2021, the Company borrowed $800,000 pursuant to the February Note. Advances from Related Parties Affiliates of the Sponsor paid certain formation, operating and offering costs on behalf of the Company. These advances are due on demand and are non-interest bearing. For the period from October 10, 2008 (inception) through December 31, 2020, the related parties paid $373,517 of offering costs and other expenses on behalf of the Company. As of December 31, 2020 and 2019, there was $373,517 and $0 due to the related parties, respectively. Administrative Services Agreement Commencing on the date the Units were first listed on the NYSE, the Company has agreed to pay the Sponsor a total of $16,667 per month for office space, utilities and secretarial and administrative support for up to 27 months. Upon completion of the Initial Business Combination or the Company’s liquidation, the Company will cease paying these monthly fees. The Company incurred $46,669 for such expenses under the administrative services agreement for the year ended December 31, 2020. As of December 31, 2020, the outstanding fees of $46,669 were in accounts payable and accrued expenses on the balance sheets.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies.
Commitments and Contingencies	6. Commitments and Contingencies Registration Rights The holders of the Founder Shares, Private Placement Warrants and Warrants that may be issued upon conversion of working capital loans, if any, (and any Class A ordinary shares issuable upon the exercise of the Private Placement Warrants and Warrants that may be issued upon conversion of working capital loans) will be entitled to registration rights pursuant to a registration rights agreement signed on the effective date of the Public Offering. The holders of these securities are entitled to demand that the Company register such securities. In addition, the holders have certain “piggy-back” registration rights with respect to registration statements filed subsequent to the consummation of an Initial Business Combination. However, the registration rights agreement provides that the Company will not permit any registration statement filed under the Securities Act to become effective until termination of the applicable lock-up period. The Company will bear the expenses incurred in connection with the filing of any such registration statements. Underwriting Agreement We paid a total of $15,000,000 in underwriting discounts and commissions and $800,880 for other costs and expenses related to the Initial Public Offering. In addition, we paid $1,336,200 in underwriting discounts pursuant to the underwriters' partial exercise of their over-allotment option. The Company is committed to pay the Deferred Discount of 3.5% of the gross proceeds of the Public Offering, or $26,250,000, to the underwriters of the Public Offering upon the completion of an Initial Business Combination. On November 10, 2020, the Company consummated the sale of Over-Allotment Units pursuant to the underwriters' partial exercise of their over-allotment option resulting in an additional $2,338,350 due to the underwriters. The deferred fee will become payable to the underwriters from the amounts held in the Trust Account solely in the event that the Company completes an Initial Business Combination, subject to the terms of the underwriting agreement. Risks and Uncertainties Management continues to evaluate the impact of the COVID-19 pandemic on the industry and has concluded that while it is reasonably possible that the virus could have a negative effect on the Company’s financial position, results of its operations and/or search for a target company, the specific impact is not readily determinable as of the date of these financial statements. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Shareholders' Equity

Shareholders' Equity	12 Months Ended
	Dec. 31, 2020
Shareholders' Equity
Shareholders' Equity	7. Shareholders’ Equity Preferred Shares The Company is authorized to issue 1,000,000 preferred shares with a par value of $0.00005 per share with such designations, voting and other rights and preferences as may be determined from time to time by the Company’s board of directors. At December 31, 2020 and 2019, there were no preferred shares issued or outstanding. Ordinary Shares The authorized ordinary shares of the Company include up to 300,000,000 shares of Class A ordinary shares and 60,000,000 shares of Class B ordinary shares. If the Company enters into an Initial Business Combination, it may (depending on the terms of such an Initial Business Combination) be required to increase the number of Class A ordinary shares which the Company is authorized to issue at the same time as the Company’s shareholders vote on the Initial Business Combination to the extent the Company seeks shareholder approval in connection with the Initial Business Combination. Holders of the Company’s ordinary shares are entitled to one vote for each ordinary share. As of December 31, 2020, there were 81,681,000 Class A ordinary shares subject to possible conversion that were classified as temporary equity in the accompanying balance sheets. The Class B ordinary shares will automatically convert into our Class A ordinary shares at the time of completion of our Initial Business Combination on a one-for-one basis, subject to adjustment for share splits, share dividends, reorganizations, recapitalizations and the like and subject to further adjustment as provided herein. In the case that additional Class A ordinary shares, or equity-linked securities, are issued or deemed issued in excess of the amounts sold in the Public Offering and related to the closing of the Initial Business Combination, the ratio at which Class B ordinary shares will convert into Class A ordinary shares will be adjusted (unless the holders of a majority of the outstanding Class B ordinary shares agree to waive such adjustment with respect to any such issuance or deemed issuance) so that the number of Class A ordinary shares issuable upon conversion of all Class B ordinary shares will equal, in the aggregate, on an as-converted basis, 20% of the sum of the total number of all ordinary shares outstanding upon the completion of the Public Offering plus all Class A ordinary shares and equity-linked securities issued or deemed issued in connection with the business combination (excluding any shares or equity-linked securities issued, or to be issued, to any seller in the business combination). As of December 31, 2020, there were 20,420,250 Class B

Warrants

Warrants	12 Months Ended
	Dec. 31, 2020
Warrants
Warrants	8.Warrants As of December 31, 2020, there were 39,451,134 warrants outstanding (12,224,134 Private Warrants and 27,227,000 Public Warrants). Public Warrants may only be exercised for a whole number of shares. No fractional shares will be issued upon exercise of the Public Warrants. The Public Warrants will become exercisable on the later of (a) 30 days after the completion of an Initial Business Combination or (b) 12 months from the closing of the Public Offering; provided in each case that the Company has an effective registration statement under the Securities Act covering the ordinary shares issuable upon exercise of the Public Warrants and a current prospectus relating to them is available (or the Company permits holders to exercise their Public Warrants on a cashless basis and such cashless exercise is exempt from registration under the Securities Act). The Company has agreed that as soon as practicable, but in no event later than 15 business days after the closing of an Initial Business Combination, the Company will use its best efforts to file with the SEC a registration statement for the registration, under the Securities Act, of the ordinary shares issuable upon exercise of the Public Warrants. The Company will use its best efforts to cause the same to become effective and to maintain the effectiveness of such registration statement, and a current prospectus relating thereto, until the expiration of the Public Warrants in accordance with the provisions of the warrant agreement. Notwithstanding the foregoing, if the Company’s ordinary shares are at the time of any exercise of a warrant not listed on a national securities exchange such that it satisfies the definition of a “covered security” under the Securities Act, the Company, at its option, may require holders of Public Warrants who exercise their warrants to do so on a “cashless basis” in accordance with Section 3(a)(9) of the Securities Act and, in the event the Company so elects, the Company will not be required to file or maintain in effect a registration statement. The Public Warrants will expire five years after the completion of an Initial Business Combination or earlier upon the Company’s redemption or liquidation. The Private Placement Warrants are identical to the Public Warrants, except that the Private Placement Warrants and the ordinary shares issuable upon exercise of the Private Placement Warrants will not be transferable, assignable or salable until 30 days after the completion of an Initial Business Combination, subject to certain limited exceptions. Additionally, the Private Placement Warrants will be non-redeemable so long as they are held by the initial purchasers or such purchasers’ permitted transferees. If the Private Placement Warrants are held by someone other than the initial purchasers or their permitted transferees, the Private Placement Warrants will be redeemable by the Company and exercisable by such holders on the same basis as the Public Warrants. The Company may redeem the Public Warrants: ● in whole and not in part; ● at a price of $0.01 per warrant; ● upon a minimum of 30 days ’ prior written notice of redemption; ● if, and only if, the last reported closing price of the Company’s ordinary shares equals or exceeds $18.00 per share (as adjusted for share splits, share capitalizations, reorganizations, recapitalizations and the like) for any 20 trading days within a 30 - trading day period ending on the third trading day prior to the date on which the Company sends the notice of redemption to the warrant holders; and ● if, and only if, there is a current registration statement in effect with respect to the ordinary shares underlying such warrants at the time of redemption and a current prospectus relating to those ordinary shares is available throughout the 30-day trading period referred to above. If the Company calls the Public Warrants for redemption, management will have the option to require all holders that wish to exercise the Public Warrants to do so on a “cashless basis,” as described in the warrant agreement. The exercise price and number of the ordinary shares issuable upon exercise of the Warrants may be adjusted in certain circumstances including in the event of a share dividend, or recapitalization, reorganization, merger or consolidation. However, the Warrants will not be adjusted for issuance of ordinary shares at a price below its exercise price. Additionally, in no event will the Company be required to net cash settle the Warrants. If the Company is unable to complete an Initial Business Combination within the Completion Window and the Company liquidates the funds held in the Trust Account, holders of Warrants will not receive any of such funds with respect to their Warrants, nor will they receive any distribution from the Company’s assets held outside of the Trust Account with the respect to such Warrants. Accordingly, the Warrants may expire worthless. The Company accounts for the 39,451,134 warrants issued in connection with the Public Offering (including 27,227,000 Public Warrants and 12,224,134 Private Placement Warrants) in accordance with the guidance contained in ASC 815-40. Such guidance provides that because the warrants do not meet the criteria for equity treatment thereunder, each warrant must be recorded as a liability. Upon issuance of the derivative warrants the Company recorded a liability of $57,753,222 on the balance sheet. The accounting treatment of derivative financial instruments requires that the Company record a derivative liability upon the closing of the Proposed Public Offering. Accordingly, the Company classifies each warrant as a liability at its fair value and the warrants will be allocated a portion of the proceeds from the issuance of the Units equal to its fair value determined by the Monte Carlo simulation for the Public Warrants and a modified Black Scholes model for the Private Warrants. This liability is subject to re-measurement at each balance sheet date. With each such re-measurement, the warrant liability will be adjusted to fair value, with the change in fair value recognized in the Company's statements of operations. The Company will reassess the classification at each balance sheet date. If the classification changes as a result of events during the period, the warrants will be reclassified as of the date of the event that causes the reclassification.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Measurements
Fair Value Measurements	9. Fair Value Measurements The Company follows the guidance in ASC 820 for its financial assets and liabilities that are re-measured and reported at fair value at each reporting period, and non-financial assets and liabilities that are re-measured and reported at fair value at least annually. The fair value of the Company’s financial assets and liabilities reflects management’s estimate of amounts that the Company would have received in connection with the sale of the assets or paid in connection with the transfer of the liabilities in an orderly transaction between market participants at the measurement date. In connection with measuring the fair value of its assets and liabilities, the Company seeks to maximize the use of observable inputs (market data obtained from independent sources) and to minimize the use of unobservable inputs (internal assumptions about how market participants would price assets and liabilities). The following fair value hierarchy is used to classify assets and liabilities based on the observable inputs and unobservable inputs used in order to value the assets and liabilities: Level 1: Quoted prices in active markets for identical assets or liabilities. An active market for an asset or liability is a market in which transactions for the asset or liability occur with sufficient frequency and volume to provide pricing information on an ongoing basis. Level 2: Observable inputs other than Level 1 inputs. Examples of Level 2 inputs include quoted prices in active markets for similar assets or liabilities and quoted prices for identical assets or liabilities in markets that are not active. Level 3: Unobservable inputs based on our assessment of the assumptions that market participants would use in pricing the asset or liability. The following table presents information about the Company’s assets that are measured on a recurring basis as of December 31, 2020 and 2019 and indicates the fair value hierarchy of the valuation techniques that the Company utilized to determine such fair value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level December 31, 2020 December 31, 2019 Description ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ $ — ​ $ — Marketable securities held in Trust Account ​ 1 ​ 816,985,533 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: Warrant Liability – Private Placement Warrants ​ 3 ​ 23,455,550 ​ — Warrant Liability – Public Warrants ​ 1 ​ 51,186,760 ​ — ​ The Warrants were accounted for as liabilities in accordance with ASC 815-40 and are presented within liabilities on the balance sheet. The warrant liabilities are measured at fair value at inception and on a recurring basis, with changes in fair value presented within change in fair value of warrant liabilities in the statement of operations. Upon consummation of the Public Offering, the Company used a Monte Carlo simulation model to value the Public Warrants and a modified Black-Scholes model to value the Private Warrants. The Company allocated the proceeds received from (i) the sale of Units (which is inclusive of one share of Class A ordinary shares and one -third of one Public Warrant), (ii) the sale of Private Warrants, and (iii) the issuance of Class B ordinary shares, first to the Warrants based on their fair values as determined at initial measurement, with the remaining proceeds allocated to Class A ordinary shares subject to possible redemption (temporary equity), Class A ordinary shares (permanent equity) and Class B ordinary shares (permanent equity) based on their relative fair values at the initial measurement date. At the initial measurement date, the Warrants were classified within Level 3 of the fair value hierarchy at the measurement dates due to the use of unobservable inputs. At December 31, 2020, the Company used a Monte Carlo simulation model to value the Public Warrants and a modified Black-Scholes model to value the Private Warrants. Since the Public Warrants are publicly traded as of the December 31, 2020, the Company relied upon the implied volatility of the Public Warrants and the closing stock price at December 31, 2020 to estimate the volatility for the Private Placement Warrants. At December 31, 2020, the Private Warrants were classified within Level 3 of the fair value hierarchy at the measurement dates due to the use of unobservable inputs. The table below provides a summary of the changes in fair value, including net transfers in and/or out, of all financial assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ Fair Value ​ ​ Measurement ​ ​ Using Level 3 ​ ​ Inputs ​ Total Balance, December 31, 2019 ​ $ — Derivative liabilities recorded on issuance of derivative warrants ​ 57,753,222 Transfer to Level 1 ​ (39,745,978) Change in fair value of derivative liabilities ​ 5,448,306 Balance, December 31, 2020 ​ $ 23,455,550 ​ The fair value of the derivative feature of the warrants was calculated using the following weighted average assumptions: ​ ​ ​ ​ ​ ​ ​ ​ October 6, 2020 December 31, 2020 Risk-free interest rate 0.43 % 0.49 % Expected life of grants 6 years 5.9 years ​ Expected volatility of underlying shares 10-30 % 10-30 % Dividends 0 % 0 % ​ As of December 31, 2020 and 2019, the derivative liability was $74,642,310 and $0, respectively. In addition, for the year ended December 31, 2020, the Company recorded $16,889,088 as a loss on the change in fair value of the derivative warrants on the statements of operations. Upon issuance of the Private Warrants, the Company charge to additional paid in capital of $328,956 for the excess of proceeds received over fair value of private warrant liabilities.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events
Subsequent Events	10. Subsequent Events Management has evaluated subsequent events and transactions that occurred through the date the financial statements were available to be issued. Other than as noted above, management did not identify any other subsequent events that would have required adjustment or disclosure in the financial statements. ​

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies
Basis of Presentation	Basis of Presentation The accompanying financial statements of the Company are presented in U.S. dollars in conformity with accounting principles generally accepted in the United States of America (“ GAAP SEC
Emerging growth company	Emerging Growth Company The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act of 1933, as amended (the “ Securities Act JOBS Act Further, section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Securities Exchange Act of 1934, as amended (“ Exchange Act ​
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with U.S. GAAP requires the Company’s management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting periods. Actual results could differ from those estimates. One of the more significant accounting estimates included in these financial statements is the determination of the fair value of the warrant liability. Such estimates may be subject to change as more current information becomes available and accordingly the actual results could differ significantly from those estimates.
Concentration of Credit Risk	Concentration of Credit Risk Financial instruments that potentially subject the Company to concentration of credit risk consist of cash accounts in a financial institution which, at times, may exceed the federal depository insurance coverage of $250,000. The Company has not experienced losses on these accounts and management believes the Company is not exposed to significant risks on such accounts.
Financial Instruments	Financial Instruments The fair value of the Company’s assets and liabilities, which qualify as financial instruments under FASB ASC 820, “ Fair Value Measurements and Disclosures
Offering Costs	Offering Costs The Company complies with the requirements of FASB ASC 340-10-S99-1 and SEC Staff Accounting Bulletin (“ SAB Expenses of Offering.”
Income Taxes	Income Taxes FASB ASC 740, “Income Taxes” There is currently no taxation imposed on income by the Government of the Cayman Islands. In accordance with Cayman income tax regulations, income taxes are not levied on the Company. Consequently, income taxes are not reflected in the Company’s financial statements.
Class A Ordinary Shares Subject to Possible Redemption	Class A Ordinary Shares Subject to Possible Redemption The Company accounts for its Class A ordinary shares subject to possible redemption in accordance with the guidance in ASC 480, “ Distinguishing Liabilities from Equity. The Company recognizes changes in redemption value immediately as they occur and adjusts the carrying value of redeemable ordinary shares to equal the redemption value at the end of each reporting period. Immediately upon the closing of the Public Offering, the Company recognized the accretion from initial book value to redemption amount value. The change in the carrying value of redeemable Class A ordinary shares resulted in charges against additional paid-in capital and accumulated deficit. The Class A ordinary shares reflected in the balance sheets are reconciled in the following table: ​ ​ ​ ​ ​ Gross proceeds $ 816,810,000 Less: ​ Proceeds allocated to Public Warrants ​ $ (39,745,978) Class A ordinary shares issuance costs ​ $ (44,871,756) Plus: ​ Accretion of carrying value to redemption value ​ $ 84,617,734 Class A ordinary shares subject to possible redemption ​ $ 816,810,000 ​
Net Income Per Ordinary Share	Net Income Per Ordinary Share The Company complies with accounting and disclosure requirements of ASC 260, “ Earnings Per Share. The calculation of diluted income (loss) per share does not consider the effect of the warrants issued in connection with the (i) Public Offering, and (ii) the private placement since the exercise of the warrants is contingent upon the occurrence of future events. As of December 31, 2020 and 2019, the Company did not have any dilutive securities or other contracts that could, potentially, be exercised or converted into ordinary shares and then share in the earnings of the Company. As a result, diluted net income (loss) per ordinary share is the same as basic net loss per ordinary share for the periods presented. The following table reflects the calculation of basic and diluted net income (loss) per ordinary share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ Year Ended ​ ​ December 31, 2020 ​ December 31, 2019 ​ Class A Class B Class A Class B Basic and diluted net loss per ordinary share ​ ​ ​ ​ ​ ​ ​ ​ Numerator: ​ ​ ​ ​ Allocation of net loss, as adjusted ​ $ (9,780,661) ​ $ (9,861,099) ​ $ — ​ $ (1,853) Denominator: ​ ​ ​ ​ Basic and diluted weighted average shares outstanding ​ 18,828,526 ​ 18,983,377 ​ — ​ 18,750,000 Basic and diluted net loss per ordinary share ​ $ (0.52) ​ $ (0.52) ​ $ — ​ $ (0.00) ​
Derivative Financial Instruments	Derivative Financial Instruments The Company evaluates its financial instruments to determine if such instruments are derivatives or contain features that qualify as embedded derivatives in accordance with ASC Topic 815, “ Derivatives and Hedging Fair Value Measurement
Warrant Instruments	Warrant Instruments The Company accounts for the warrants issued in connection with the Initial Public Offering and Private Placement in accordance with the guidance contained in FASB ASC 815 “ Derivatives and Hedging
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received for sale of an asset or paid to transfer of a liability, in an orderly transaction between market participants at the measurement date. GAAP establishes a three-tier fair value hierarchy, which prioritizes the inputs used in measuring fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). These tiers include: ● Level 1, defined as observable inputs such as quoted prices (unadjusted) for identical instruments in active markets; ● Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable such as quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active; and ● Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions, such as valuations derived from valuation techniques in which one or more significant inputs or significant value drivers are unobservable.
Recent Accounting Standards and Recent Accounting Pronouncements	Recent Accounting Standards Management does not believe that any recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statements. Recent Accounting Pronouncements In August 2020, the FASB issued Accounting Standards Update ("ASU") No. 2020-06, Debt --Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging --Contracts in Entity's Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity's Own Equity Management does not believe that any recently issued, but not yet effective, accounting standards, if currently adopted, would have a material effect on the Company’s financial statements.

Restatement of Previously Iss_2

Restatement of Previously Issued Financial Statements (Tables)	12 Months Ended
	Dec. 31, 2020
Restatement of Previously Issued Financial Statements
Summarizes the effect of error correction and prior period adjustments	​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As ​ First Amended Filing Adjustments Restated Balance sheet as of October 6, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 751,199,121 ​ $ — ​ $ 751,199,121 Total liabilities ​ $ 80,940,965 ​ $ — ​ $ 80,940,965 Class A ordinary shares subject to redemption ​ 665,258,150 ​ $ 151,551,850 ​ $ 816,810,000 Shareholders’ equity (deficit) ​ ​ ​ ​ ​ ​ Class A ordinary shares ​ 424 ​ $ (424) ​ $ — Class B ordinary shares ​ 1,078 ​ $ — ​ $ 1,078 Additional paid-in capital ​ ​ 7,192,687 ​ $ (7,192,687) ​ $ — Accumulated deficit ​ ​ (2,194,183) ​ $ (144,358,739) ​ $ (146,552,922) Total shareholders’ equity (deficit) ​ $ 5,000,006 ​ $ (151,551,850) ​ $ (146,551,844) Total liabilities, temporary equity and shareholders’ equity (deficit) ​ $ 751,199,121 ​ $ — ​ $ 751,199,121 ​ The impact of the restatement on the audited balance sheet as of December 31, 2020 is presented below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As ​ First Amended Filing Adjustments Restated Balance sheet December 31, 2020 ​ ​ ​ ​ ​ ​ ​ ​ ​ Total assets ​ $ 818,368,660 ​ $ — ​ $ 818,368,660 Total liabilities ​ $ 105,487,341 ​ $ — ​ $ 105,487,341 Class A ordinary shares subject to redemption ​ 707,881,310 ​ $ 108,928,690 ​ $ 816,810,000 Shareholders’ equity (deficit) ​ ​ ​ ​ ​ ​ Class A ordinary shares ​ 545 ​ (545) ​ — Class B ordinary shares ​ 1,021 ​ — ​ 1,021 Additional paid-in capital ​ ​ 24,670,251 ​ ​ (24,670,251) ​ ​ — Accumulated deficit ​ ​ (19,671,808) ​ ​ (84,257,894) ​ ​ (103,929,702) Total shareholders’ equity (deficit) ​ $ 5,000,009 ​ $ (108,928,690) ​ $ (103,928,681) Total liabilities, temporary equity and shareholders’ equity (deficit) ​ $ 818,368,660 ​ $ — ​ $ 818,368,660 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ As Reported ​ ​ ​ ​ ​ ​ ​ As Previously ​ ​ ​ ​ ​ ​ Restated in the ​ ​ ​ ​ As Statement of Operations as of December 31, 2020 ​ First Amended Filing ​ Adjustments ​ Restated Net loss ​ ​ (19,641,760) ​ ​ — ​ ​ (19,641,760) Basic and diluted weighted average shares outstanding, Class A ordinary shares ​ ​ 78,961,988 ​ ​ (60,133,462) ​ ​ 18,828,526 Basic and diluted net income (loss) per share of Class A ordinary shares ​ $ 0.00 ​ $ (0.52) ​ $ (0.52) Weighted average number of shares of shares outstanding, Class A ordinary shares ​ ​ 18,983,377 ​ ​ — ​ ​ 18,983,377 Basic and diluted net loss per share of Class B ordinary shares ​ $ (1.04) ​ $ 0.52 ​ $ (0.52)

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Summary of Significant Accounting Policies
Summary of reconciliation of Class A common stock reflected on the balance sheet	​ ​ ​ ​ ​ Gross proceeds $ 816,810,000 Less: ​ Proceeds allocated to Public Warrants ​ $ (39,745,978) Class A ordinary shares issuance costs ​ $ (44,871,756) Plus: ​ Accretion of carrying value to redemption value ​ $ 84,617,734 Class A ordinary shares subject to possible redemption ​ $ 816,810,000
Schedule of calculation of basic and diluted net income (loss) per ordinary share	The following table reflects the calculation of basic and diluted net income (loss) per ordinary share: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ Year Ended ​ ​ December 31, 2020 ​ December 31, 2019 ​ Class A Class B Class A Class B Basic and diluted net loss per ordinary share ​ ​ ​ ​ ​ ​ ​ ​ Numerator: ​ ​ ​ ​ Allocation of net loss, as adjusted ​ $ (9,780,661) ​ $ (9,861,099) ​ $ — ​ $ (1,853) Denominator: ​ ​ ​ ​ Basic and diluted weighted average shares outstanding ​ 18,828,526 ​ 18,983,377 ​ — ​ 18,750,000 Basic and diluted net loss per ordinary share ​ $ (0.52) ​ $ (0.52) ​ $ — ​ $ (0.00)

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Measurements
Schedule of company's assets that are measured on a recurring basis	The following table presents information about the Company’s assets that are measured on a recurring basis as of December 31, 2020 and 2019 and indicates the fair value hierarchy of the valuation techniques that the Company utilized to determine such fair value. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Level December 31, 2020 December 31, 2019 Description ​ ​ ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ $ — ​ $ — Marketable securities held in Trust Account ​ 1 ​ 816,985,533 ​ — ​ ​ ​ ​ ​ ​ ​ ​ ​ Liabilities: Warrant Liability – Private Placement Warrants ​ 3 ​ 23,455,550 ​ — Warrant Liability – Public Warrants ​ 1 ​ 51,186,760 ​ —
Schedule of the changes in fair value, including net transfers in all financial assets and liabilities	The table below provides a summary of the changes in fair value, including net transfers in and/or out, of all financial assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the year ended December 31, 2020: ​ ​ ​ ​ ​ ​ Fair Value ​ ​ Measurement ​ ​ Using Level 3 ​ ​ Inputs ​ Total Balance, December 31, 2019 ​ $ — Derivative liabilities recorded on issuance of derivative warrants ​ 57,753,222 Transfer to Level 1 ​ (39,745,978) Change in fair value of derivative liabilities ​ 5,448,306 Balance, December 31, 2020 ​ $ 23,455,550
Schedule of the fair value of the derivative feature of the warrants	​ ​ ​ ​ ​ ​ ​ ​ October 6, 2020 December 31, 2020 Risk-free interest rate 0.43 % 0.49 % Expected life of grants 6 years 5.9 years ​ Expected volatility of underlying shares 10-30 % 10-30 % Dividends 0 % 0 %

Description of Organization a_2

Description of Organization and Business Operations (Details) - USD ($)	Nov. 10, 2020	Oct. 06, 2020	Dec. 31, 2020	Feb. 22, 2021	Oct. 20, 2020
Description of Organization and Business Operations
Number of units issued			39,451,134
Investments held in Trust			$ 816,985,533
Offering cost			800,880
Cash underwriting discount paid			15,000,000
Deferred underwriting commissions			28,588,350
Deferred underwriting fee payable		$ 26,250,000	28,588,350
Transaction costs allocable to warrant liability			$ 2,344,508
Deferred costs	$ 2,338,350
Maturity term of U.S. government securities			180 days
Maximum interest income on the balance in the Trust Account which may be used to pay dissolution expenses		$ 100,000	$ 100,000
Percentage of shares of stock the Company is obligated to redeem without consummating a business combination			100.00%
Percentage of aggregate fair market value of assets			80.00%
Minimum net tangible assets upon consummation of business combination			$ 5,000,001
Threshold trading days to redeem the shares			10 days
Maximum allowed dissolution expenses			$ 100,000
Public Offering
Description of Organization and Business Operations
Number of units issued		75,000,000
Units, par value		$ 0.00005
Price per unit		$ 10
Proceeds from offering		$ 750,000,000
Investments held in Trust		750,000,000
Offering cost		43,541,714
Deferred underwriting commissions		$ 26,250,000
Over-allotment option
Description of Organization and Business Operations
Number of units issued	6,681,000
Price per unit	$ 10
Proceeds from offering	$ 66,810,000
Offering cost	3,674,550
Cash underwriting discount paid			$ 1,336,200
Deferred underwriting commissions	$ 2,338,350
Over-allotment option | Founder
Description of Organization and Business Operations
Maximum shares subject to forfeiture	1,142,250
Over-allotment option | Class A ordinary shares
Description of Organization and Business Operations
Number of units issued	6,681,000
Sponsor | Private Placement
Description of Organization and Business Operations
Number of warrants to purchase the shares issued (in shares)	890,800	11,333,334
Price of warrants (in dollars per share)		$ 1.50
Proceeds from issuance of warrants	$ 1,336,200	$ 17,000,000
Sponsor | Private Placement | Class A ordinary shares
Description of Organization and Business Operations
Price of warrants (in dollars per share)		$ 11.50
October Note | Public Offering
Description of Organization and Business Operations
Investments held in Trust		$ 800,877
Offering cost		42,050,877
Cash underwriting discount paid		15,000,000
Deferred underwriting commissions		$ 26,250,000
October Note | Sponsor
Description of Organization and Business Operations
Principal amount of promissory note					$ 1,500,000
Interest rate per annum					0.14%
Amount borrowed					$ 1,500,000
February Note | Sponsor
Description of Organization and Business Operations
Principal amount of promissory note				$ 800,000
Interest rate per annum				0.12%
Amount borrowed				$ 800,000

Restatement of Previously Iss_3

Restatement of Previously Issued Financial Statements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Oct. 06, 2020
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Condition to be satisfied as per provision in Warrant Agreement	50.00%
Minimum net tangible assets upon consummation of business combination	$ 5,000,001
Obligation to redeem public shares if entity does not complete a business combination	5,000,001
Balance sheet as of December 31, 2020 (audited)
Derivative warrant liability	74,642,310
Total assets	818,368,660	$ 1,854	$ 751,199,121
Total Liabilities	105,487,341		80,940,965
Share subject to possible redemption	816,810,000		816,810,000
Accumulated deficit	(103,929,702)	(30,048)	(146,552,922)
Total shareholders' equity	(103,928,681)	1,854	(146,551,844)
Total liabilities, temporary equity and shareholders' equity (deficit)	818,368,660		751,199,121
Statement of operations as of December 31, 2020 (audited)
Transaction costs allocable to warrant liability	(2,344,508)
Change in fair value of derivative warrants	(16,889,088)
Total other income (expense)	19,058,477
Net loss	$ (19,641,760)	(1,853)
Class A ordinary shares
Statement of operations as of December 31, 2020 (audited)
Basic and diluted weighted average shares outstanding	18,828,526
Basic and diluted net income (loss) per share	$ (0.52)
Class B ordinary shares
Balance sheet as of December 31, 2020 (audited)
Ordinary shares	$ 1,021	$ 1,021	1,078
Statement of operations as of December 31, 2020 (audited)
Basic and diluted weighted average shares outstanding	18,983,377	18,750,000
Basic and diluted net income (loss) per share	$ (0.52)	$ 0
Class A Common Stock Subject to Redemption
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Decrease in additional paid-in capital	$ 7,200,000
Increase in accumulated deficit	$ 144,400,000
Reclassification of permanent to temporary equity	15,155,185
Balance sheet as of December 31, 2020 (audited)
Share subject to possible redemption	$ 816,810,000
As Previously Reported
Balance sheet as of December 31, 2020 (audited)
Total assets	818,368,660		751,199,121
Total Liabilities	105,487,341		80,940,965
Share subject to possible redemption			665,258,150
Additional paid-in capital	24,670,251		7,192,687
Accumulated deficit	(19,671,808)		(2,194,183)
Total shareholders' equity	5,000,009		5,000,006
Total liabilities, temporary equity and shareholders' equity (deficit)	818,368,660		751,199,121
Statement of operations as of December 31, 2020 (audited)
Net loss	(19,641,760)
As Previously Reported | Class A ordinary shares
Balance sheet as of December 31, 2020 (audited)
Ordinary shares	$ 545		424
Statement of operations as of December 31, 2020 (audited)
Basic and diluted weighted average shares outstanding	78,961,988
Basic and diluted net income (loss) per share	$ 0
As Previously Reported | Class B ordinary shares
Balance sheet as of December 31, 2020 (audited)
Ordinary shares	$ 1,021		1,078
Statement of operations as of December 31, 2020 (audited)
Basic and diluted weighted average shares outstanding	18,983,377
Basic and diluted net income (loss) per share	$ (1.04)
As Previously Reported | Class A Common Stock Subject to Redemption
Balance sheet as of December 31, 2020 (audited)
Share subject to possible redemption	$ 707,881,310
Adjustments
Balance sheet as of December 31, 2020 (audited)
Share subject to possible redemption			151,551,850
Additional paid-in capital	(24,670,251)		(7,192,687)
Accumulated deficit	(84,257,894)		(144,358,739)
Total shareholders' equity	(108,928,690)		(151,551,850)
Adjustments | Class A ordinary shares
Balance sheet as of December 31, 2020 (audited)
Ordinary shares	$ (545)		$ (424)
Statement of operations as of December 31, 2020 (audited)
Basic and diluted weighted average shares outstanding	(60,133,462)
Basic and diluted net income (loss) per share	$ (0.52)
Adjustments | Class B ordinary shares
Statement of operations as of December 31, 2020 (audited)
Basic and diluted net income (loss) per share	$ 0.52
Adjustments | Class A Common Stock Subject to Redemption
Balance sheet as of December 31, 2020 (audited)
Share subject to possible redemption	$ 108,928,690

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Oct. 06, 2020	Dec. 31, 2019
Summary of Significant Accounting Policies
Federal depository insurance coverage	$ 250,000
Offering costs charged to APIC	800,877
Underwriter discounts charged to APIC	44,924,550
Transaction costs allocable to warrant liability	2,344,508
Unrecognized tax benefits	0		$ 0
Share subject to possible redemption	816,810,000	$ 816,810,000
Amounts accrued for the payment of interest and penalties	$ 0		$ 0

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Reconciliation of Ordinary Shares Reflected in Balance Sheets (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Oct. 06, 2020
Summary of Significant Accounting Policies
Gross proceeds	$ 816,810,000
Proceeds allocated to Public Warrants	(39,745,978)
Class A ordinary shares issuance costs	(44,871,756)
Accretion of carrying value to redemption value	84,617,734
Share subject to possible redemption	$ 816,810,000	$ 816,810,000

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Calculation of Basic and Diluted Net Income (Loss) Per Ordinary Share (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Class A ordinary shares
Numerator:
Allocation of net loss, as adjusted	$ (9,780,661)
Denominator:
Basic and diluted weighted average shares outstanding	18,828,526
Basic and diluted net loss per share	$ (0.52)
Class B ordinary shares
Numerator:
Allocation of net loss, as adjusted	$ (9,861,099)	$ (1,853)
Denominator:
Basic and diluted weighted average shares outstanding	18,983,377	18,750,000
Basic and diluted net loss per share	$ (0.52)	$ 0

Public Offering (Details)

Public Offering (Details) - USD ($)	Nov. 10, 2020	Oct. 06, 2020	Dec. 31, 2020	Dec. 31, 2019
Public Offering
Number of units issued			39,451,134
Offering cost			$ 800,880
Deferred underwriting commissions			$ 28,588,350
Percentage of underwriting discount			2.00%
Cash underwriting discount paid			$ 15,000,000
Percentage of deferred fee			3.50%
Deferred underwriting fee payable		$ 26,250,000	$ 28,588,350
Public Warrants
Public Offering
Number of units issued			27,227,000
Warrants exercisable term after the completion of a business combination			30 days
Warrants exercisable term from the closing of the public offering			12 months
Threshold maximum period for filing registration statement after business combination			15 days
Warrant expiry term			5 years
Class A ordinary shares
Public Offering
Common stock, par value			$ 0.00005	$ 0.00005
Public Offering
Public Offering
Number of units issued		75,000,000
Price per unit		$ 10
Proceeds from offering		$ 750,000,000
Offering cost		43,541,714
Deferred underwriting commissions		$ 26,250,000
Over-allotment option
Public Offering
Number of units issued	6,681,000
Price per unit	$ 10
Proceeds from offering	$ 66,810,000
Offering cost	3,674,550
Deferred underwriting commissions	$ 2,338,350
Exercise price of warrants (in dollars per share)			$ 11.50
Cash underwriting discount paid			$ 1,336,200
Over-allotment option | Class A ordinary shares
Public Offering
Number of units issued	6,681,000

Related Party Transactions - Fo

Related Party Transactions - Founder share (Details)	Aug. 06, 2020shares	Sep. 30, 2020$ / sharesshares	Dec. 31, 2020USD ($)$ / sharesshares	Nov. 30, 2020shares	Nov. 10, 2020shares	Sep. 16, 2020shares	Dec. 31, 2019$ / sharesshares
Sponsor
Related Party Transactions
Share price | $ / shares		$ 65.25
Number of shares issued		75,000
Common Stock, Shares, Outstanding						7,187,500
Founder
Related Party Transactions
Share price | $ / shares		$ 0.00087
Number of shares issued		25,000
Common Stock, Shares, Outstanding						21,562,500
Threshold period for not to transfer, assign or sell any of their shares or warrants after the completion of the initial business combination			30 days
Stock price trigger to transfer, assign or sell any shares or warrants of the company, after the completion of the initial business combination (in dollars per share) | $ / shares			$ 12
Threshold trading days for transfer, assign or sale of shares or warrants, after the completion of the initial business combination | $			20
Threshold period after the business combination in which the 20 trading days within any 30 trading day period commences			150 days
Class B ordinary shares
Related Party Transactions
Common Stock, Shares, Outstanding			20,420,250				20,420,250
Ordinary shares, par value | $ / shares			$ 0.00005				$ 0.00005
Maximum shares subject to forfeiture				1,142,250
Class B ordinary shares | Founder
Related Party Transactions
Common Stock, Shares, Outstanding	28,750,000
Recapitalization ratio	1.33333
Over-allotment option | Founder
Related Party Transactions
Maximum shares subject to forfeiture					1,142,250

Related Party Transactions - Pr

Related Party Transactions - Private placement warrants (Details) - Private Placement - Sponsor - USD ($)	Nov. 10, 2020	Oct. 06, 2020
Related Party Transactions
Number of warrants to purchase the shares issued (in shares)	890,800	11,333,334
Price of warrants (in dollars per share)		$ 1.50
Purchase price per warrant	$ 1.50
Proceeds from Issuance of Warrants	$ 1,336,200	$ 17,000,000
Threshold Period For Not To Transfer, Assign Or Sell Any Shares Or Warrants After Completion Of Initial Business Combination		30 days
Class A ordinary shares
Related Party Transactions
Price of warrants (in dollars per share)		$ 11.50

Related Party Transactions - Re

Related Party Transactions - Related Party Loans (Details) - Sponsor - USD ($)	Feb. 22, 2021	Dec. 31, 2020	Oct. 20, 2020	Aug. 11, 2020
Note
Related Party Transactions
Principal amount of promissory note				$ 750,000
Interest rate per annum				0.17%
October Note
Related Party Transactions
Principal amount of promissory note			$ 1,500,000
Interest rate per annum			0.14%
Amount borrowed			$ 1,500,000
Outstanding balance		$ 1,500,000
February Note
Related Party Transactions
Principal amount of promissory note	$ 800,000
Interest rate per annum	0.12%
Amount borrowed	$ 800,000

Related Party Transactions - Ad

Related Party Transactions - Advances from Related Parties, Administrative Services Agreement (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Related Party Transactions
Due to the related parties	$ 373,517
Threshold period for which expenses are paid	27 months
Advances from Related Parties
Related Party Transactions
Offering costs and other expenses	$ 373,517	$ 0
Due to the related parties	373,517
Administrative Services Agreement
Related Party Transactions
Expenses per month	16,667
Expenses incurred	46,669
Accounts payable and accrued expenses	$ 46,669

Commitments and Contingencies (

Commitments and Contingencies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Nov. 10, 2020
Underwriting Agreement
Underwriting discounts and commissions paid	$ 15,000,000
Other costs and expenses related to IPO	$ 800,880
Deferred underwriting discount percentage	3.50%
Deferred underwriting discount amount	$ 26,250,000
Deferred underwriting commissions	28,588,350
Over-allotment option
Underwriting Agreement
Underwriting discounts and commissions paid	$ 1,336,200
Deferred underwriting commissions		$ 2,338,350

Shareholders' Equity - Preferre

Shareholders' Equity - Preferred Shares (Details) - $ / shares	Dec. 31, 2020	Dec. 31, 2019
Shareholders' Equity
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, par value	$ 0.00005	$ 0.00005
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0

Shareholders' Equity - Ordinary

Shareholders' Equity - Ordinary Shares (Details)	1 Months Ended	12 Months Ended
	Sep. 30, 2020shares	Dec. 31, 2020Vote / shares$ / sharesshares	Nov. 30, 2020shares	Dec. 31, 2019$ / sharesshares
Shareholders' Equity
Number of vote for each ordinary share | Vote / shares		1
Number of Class A common stock issued upon conversion of each share (in shares)		1
Number of common stock issuable pursuant to Initial Business Combination, as a percent of outstanding shares (in shares)		20.00%
Common stock, number of votes per share | Vote / shares		1
Common stock, shares subject to surrender (in shares)	7,187,500
Class A ordinary shares
Shareholders' Equity
Common stock, shares authorized		300,000,000		300,000,000
Common stock shares outstanding including shares subject to possible conversion		81,681,000
Shares subject to possible redemption		81,681,000		0
Common stock, par value | $ / shares		$ 0.00005		$ 0.00005
Common stock, shares issued		0		0
Common stock, shares outstanding		0		0
Class B ordinary shares
Shareholders' Equity
Common stock, shares authorized		60,000,000		60,000,000
Common stock, par value | $ / shares		$ 0.00005		$ 0.00005
Common stock, shares issued		20,420,250		20,420,250
Common stock, shares outstanding		20,420,250		20,420,250
Common stock, shares subject to forfeiture (in shares)			1,142,250

Warrants (Details)

Warrants (Details)	12 Months Ended
	Dec. 31, 2020USD ($)$ / sharesshares
Shareholders' Equity
Warrants outstanding	39,451,134
Number of units issued	39,451,134
Derivative warrants liability | $	$ 57,753,222
Public Warrants
Shareholders' Equity
Warrants outstanding	27,227,000
Warrants exercisable term after the completion of a business combination	30 days
Warrants exercisable term from the closing of the public offering	12 months
Threshold maximum period for filing registration statement after business combination	15 days
Warrant expiry term	5 years
Number of units issued	27,227,000
Public Warrants | Redemption of Warrants when price per share of Class A common stock equals or exceeds $18.00
Shareholders' Equity
Redemption price per warrant (in dollars per share) | $ / shares	$ 0.01
Minimum threshold written notice period for redemption of public warrants	30 days
Stock price trigger for redemption of warrants (in dollars per share) | $ / shares	$ 18
Threshold trading days for redemption of warrants	20 days
Threshold consecutive trading days for redemption of warrants	30 days
Private Placement Warrants
Shareholders' Equity
Warrants outstanding	12,224,134
Warrants exercisable term after the completion of a business combination	30 days
Number of units issued	12,224,134

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)	Oct. 06, 2020	Dec. 31, 2020
Assets:
Marketable securities held in Trust Account		$ 816,985,533
Liabilities:
Derivative warrant liability		74,642,310
Public Warrants
Liabilities:
Number of shares issuable per warrant	0.3
Class A ordinary shares
Liabilities:
Number of warrants in a unit	1
Level 1 | Recurring
Assets:
Marketable securities held in Trust Account		816,985,533
Level 1 | Recurring | Public Warrants
Liabilities:
Derivative warrant liability		51,186,760
Level 3 | Recurring
Liabilities:
Derivative warrant liability		57,753,222
Level 3 | Recurring | Private Placement Warrants
Liabilities:
Derivative warrant liability		$ 23,455,550

Fair Value Measurements - Chang

Fair Value Measurements - Change in the Fair Value of the Warrant Liabilities (Details)	12 Months Ended
	Dec. 31, 2020USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 0
Derivative liabilities recorded on issuance of derivative warrants	74,642,310
Change in fair value of derivative liabilities	(16,889,088)
Ending Balance	74,642,310
Recurring | Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Derivative liabilities recorded on issuance of derivative warrants	57,753,222
Transfer to Level 1	(39,745,978)
Change in fair value of derivative liabilities	5,448,306
Ending Balance	$ 23,455,550

Fair Value Measurements - Level

Fair Value Measurements - Level 3 Fair Value Measurements Inputs (Details)	12 Months Ended
	Dec. 31, 2020USD ($)	Oct. 06, 2020	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Gain on change in fair value of derivative liabilities	$ 16,889,088
Derivative liability	74,642,310		$ 0
Charge to additional paid in capital	328,959
Public Warrants
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Charge to additional paid in capital	$ 328,956
Risk-free interest rate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative warrants	0.49	0.43
Expected life of grants | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative warrants	5.9	6
Expected volatility of underlying shares | Level 3 | Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative warrants	10	10
Expected volatility of underlying shares | Level 3 | Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative warrants	30	30
Dividends | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value of derivative warrants	0	0