CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Cumulative effect of accounting change	Preferred stock	Preference stock	Common Stock	Additional Paid-in Capital	Retained earnings	Retained earnings Cumulative effect of accounting change	Accumulated other comprehensive loss	Accumulated other comprehensive loss Cumulative effect of accounting change	Treasury stock
Beginning balance at Dec. 31, 2018	$ 101,842	$ 3,348	$ 1	$ 396	$ 323,338	$ 121,475	$ 5,279,682	$ 3,348	$ (948,961)	$ 0	$ (4,674,089)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	194,319						194,319
Other comprehensive income	108,818								108,818
Cash dividends
Common	(35,353)						(35,353)
Preference	(8)						(8)
Issuance of treasury stock	(1,684)					(43,062)					41,378
Conversions to common stock	0			(130)		(2,804)					2,934
Redemption of preferred/preference stock	(277)		(1)	(266)		(10)
Stock-based compensation	23,149					23,149
Repurchase of common stock	(105,000)										(105,000)
Ending balance at Dec. 31, 2019	289,154	$ (21,900)	0	0	323,338	98,748	5,441,988	$ (21,900)	(840,143)		(4,734,777)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(180,376)						(180,376)
Other comprehensive income	1,012								1,012
Cash dividends
Common	(34,291)						(34,291)
Issuance of treasury stock	(454)					(47,722)					47,268
Stock-based compensation	17,476					17,476
Ending balance at Dec. 31, 2020	70,621		0	0	323,338	68,502	5,205,421		(839,131)		(4,687,509)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(1,351)						(1,351)
Other comprehensive income	58,819								58,819
Cash dividends
Common	(34,800)						(34,800)
Issuance of treasury stock	(1,519)					(86,879)					85,360
Stock-based compensation	20,862					20,862
Ending balance at Dec. 31, 2021	$ 112,632		$ 0	$ 0	$ 323,338	$ 2,485	$ 5,169,270		$ (780,312)		$ (4,602,149)