CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Preferred Stock Convertible Preferred Stock Cumulative Effect, Period of Adoption, Adjustment	Preferred Stock Convertible Preferred Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Preferred Stock Convertible Preferred Stock	Common Stock Common Stock Class A Cumulative Effect, Period of Adoption, Adjustment	Common Stock Common Stock Class A Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock Common Stock Class A	Common Stock Common Stock Class B Cumulative Effect, Period of Adoption, Adjustment	Common Stock Common Stock Class B Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock Common Stock Class B	Common Stock Common Stock Class C Cumulative Effect, Period of Adoption, Adjustment	Common Stock Common Stock Class C Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock Common Stock Class C	Common Stock Common Stock Class D Cumulative Effect, Period of Adoption, Adjustment	Common Stock Common Stock Class D Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock Common Stock Class D	Accumulated Other Comprehensive Income Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Income	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjustment	Additional Paid-In Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-In Capital	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Deficit	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Total
BALANCE at Dec. 31, 2021			$ 0			$ 9			$ 3			$ 2			$ 37		$ 54,950			$ 1,018,996			$ (770,353)			$ 303,644
Net Income (Loss)			0			0			0			0			0					0			34,343			34,343
Stock-based compensation expense			0			1			0			0			1					6,593			0			6,595
Repurchase of shares of common stock			0			0			0			0			(4)					(26,539)			0			(26,543)
Exercise of options for common stock			0			0			0			0			0					50			0			50
Other comprehensive income, net of tax			0			0			0			0			0		18,277			0			0			18,277
Adjustment of redeemable noncontrolling interests to estimated redemption value			0			0			0			0			0					(5,616)			0			(5,616)
BALANCE at Dec. 31, 2022	$ 0	$ 0	0	$ 0	$ 10	10	$ 0	$ 3	3	$ 0	$ 2	2	$ 0	$ 34	34	$ 73,227	73,227	$ 0	$ 993,484	993,484	$ 589	$ (735,421)	(736,010)	$ 589	$ 331,339	330,750
Net Income (Loss)			0			0			0			0			0					0			2,050			2,050
Stock-based compensation expense			0			0			0			0			0					5,392			0			5,392
Repurchase of shares of common stock			0			0			0			0			0					(1,630)			0			(1,630)
Sale of MGM investment			0			0			0			0			0		$ (73,227)			0			0			(73,227)
Vesting of restricted common stock			0			0			0			0			0					3,234			0			3,234
Other comprehensive income, net of tax																										(73,227)
Adjustment of redeemable noncontrolling interests to estimated redemption value			0			0			0			0			0					6,907			0			6,907
BALANCE at Dec. 31, 2023			$ 0			$ 10			$ 3			$ 2			$ 34					$ 1,007,387			$ (733,371)			$ 274,065