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Employment and Compensation Arrangements - PSU activity (Details) - USD ($)			3 Months Ended
	Mar. 01, 2021	May 13, 2019	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Shareholders' Equity
Vesting period		3 years
Authorized grants					60,000,000
Share-based compensation expense			$ 39,020,000	$ 17,469,000
Transaction Related Awards 2019
Shareholders' Equity
Authorized grants		7,000,000
Share-based compensation expense			$ 13,720,000
PSUs
Shareholders' Equity
Outstanding as of December 31, 2020			873,325
Vested			499,141
Outstanding as of March 31, 2021			1,372,466
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 24.56		$ 25.16
Exercise of Private Placement Warrants			23.50
Outstanding as of March 31, 2021			$ 24.56
Vesting period			3 years
Share-based compensation expense			$ 0
TSR PSUs
Shareholders' Equity
Vesting period			3 years
Share-based compensation expense			$ 1,144,000
TSR PSUs | Minimum
Shareholders' Equity
Share-based Compensation Arrangement by Share-based Payment Award, Payout As A Percent Of Target			0.00%
TSR PSUs | Maximum
Shareholders' Equity
Share-based Compensation Arrangement by Share-based Payment Award, Payout As A Percent Of Target			120.00%
Total Shareholder Return Performance Stock Units 2021
Shareholders' Equity
Granted	499,141
Vesting period			3 years
Share-based compensation expense			$ 108,000
Total Shareholder Return Performance Stock Units 2021 | Minimum
Shareholders' Equity
Share-based Compensation Arrangement by Share-based Payment Award, Payout As A Percent Of Target			0.00%
Total Shareholder Return Performance Stock Units 2021 | Maximum
Shareholders' Equity
Share-based Compensation Arrangement by Share-based Payment Award, Payout As A Percent Of Target			200.00%

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Share-based Compensation Arrangement by Share-based Payment Award, Payout As A Percent Of Target

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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