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Stockholders' Equity (Deficit) (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	3 Months Ended			6 Months Ended		12 Months Ended
	Feb. 11, 2021	May 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Subsidiary, Sale of Stock [Line Items]
Common stock, par value (usd per share)			$ 0.01			$ 0.01		$ 0.01
Underwriter discounts, commissions, and other expenses						$ 17,700
Dividends and Noncontrolling Interest [Line Items]
Cash dividend paid (usd per share)				$ 1.00
Proceeds from issuance of subsidiary common stock						4,662	$ 0
Cash dividends				$ (224)			107,277
Decrease from distributions to noncontrolling interest			$ 6,479			6,479	998
WRF Revolver, due 2024 | Senior Secured Revolving Credit Facility | WRF
Subsidiary, Sale of Stock [Line Items]
Repayment on credit facility	$ 716,000
Subsidiaries | WML
Dividends and Noncontrolling Interest [Line Items]
Cash dividends						0		$ 0
Public Stock Offering
Subsidiary, Sale of Stock [Line Items]
Newly issued shares of common stock in registered public offering (shares)	7,475,000
Common stock, par value (usd per share)	$ 0.01
Price per share (usd per share)	$ 115.00
Proceeds	$ 841,900
Underwriter discounts, commissions, and other expenses	$ 17,700
Retained earnings (Accumulated deficit)
Dividends and Noncontrolling Interest [Line Items]
Cash dividends declared, recorded as reduction of retained earnings					$ 107,500
Cash dividends				(208)			107,307
Noncontrolling interests
Dividends and Noncontrolling Interest [Line Items]
Cash dividends				$ (16)			(30)
Decrease from distributions to noncontrolling interest			$ 6,479			$ 6,479	$ 998
Noncontrolling interests | Subsidiaries | Common Class A
Dividends and Noncontrolling Interest [Line Items]
Shares issued to noncontrolling interest (shares)		3,229
Proceeds from issuance of subsidiary common stock		$ 4,700

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