CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Class A	Common Class B	Application of amended leasing guidance	Common Stock Common Class A	Common Stock Common Class B	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Retained Earnings (Accumulated Deficit) Application of amended leasing guidance	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Dec. 31, 2019					133,867,621	4,045,199
Beginning Balance at Dec. 31, 2019	$ 881,443			$ 0	$ 1,339	$ 40	$ 1,655,781	$ (775,578)	$ 0	$ (139)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(242,224)							(242,224)
Compensation expense related to granting of stock awards (in shares)					3,389,801
Compensation expense related to granting of stock awards	11,134				$ 34		11,100
Issuance of common stock related to the ESPP (in shares)					165,756
Issuance of common stock related to the ESPP	240				$ 1		239
Exercise of stock options	0
Common stock repurchase	$ 0
Purchase of vested employee restricted stock units (in shares)	(510,000)				(509,803)
Purchase of vested employee restricted stock units	$ (1,527)				$ (5)		(1,522)
Payment of dividends on common stock	(3,443)						(3,443)
Dividend equivalents, net of forfeitures	765							765
Net unrealized gain (loss) on derivatives	(1,650)									(1,650)
Ending Balance (in shares) at Dec. 31, 2020					136,913,375	4,045,199
Ending Balance at Dec. 31, 2020	644,738				$ 1,369	$ 40	1,662,155	(1,017,037)		(1,789)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(3,572)							(3,572)
Compensation expense related to granting of stock awards (in shares)					3,226,962
Compensation expense related to granting of stock awards	11,185				$ 32		11,153
Issuance of common stock related to the ESPP (in shares)					106,049
Issuance of common stock related to the ESPP	$ 316				$ 1		315
Purchase of vested employee restricted stock units (in shares)	(386,000)				(386,003)
Purchase of vested employee restricted stock units	$ (2,066)				$ (3)		(2,063)
Payment of dividends on common stock	(449)						(449)
Dividend equivalents, net of forfeitures	467							467
Net unrealized gain (loss) on derivatives	1,500									1,500
Ending Balance (in shares) at Dec. 31, 2021		140,060,355	4,045,199		140,060,355	4,045,199
Ending Balance at Dec. 31, 2021	652,205				$ 1,401	$ 40	1,671,195	(1,020,142)		(289)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(140,671)							(140,671)
Compensation expense related to granting of stock awards (in shares)					1,218,160
Compensation expense related to granting of stock awards	7,297				$ 12		7,285
Issuance of common stock related to the ESPP (in shares)					583,594
Issuance of common stock related to the ESPP	429				$ 6		423
Exercise of stock options	$ 0
Purchase of vested employee restricted stock units (in shares)	(702,000)				(702,275)
Purchase of vested employee restricted stock units	$ (1,883)				$ (7)		(1,876)
Payment of dividends on common stock	(184)						(184)
Dividend equivalents, net of forfeitures	195							195
Net unrealized gain (loss) on derivatives	3,231									3,231
Ending Balance (in shares) at Dec. 31, 2022		141,159,834	4,045,199		141,159,834	4,045,199
Ending Balance at Dec. 31, 2022	$ 520,619				$ 1,412	$ 40	$ 1,676,843	$ (1,160,618)		$ 2,942