Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands		Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2021		35,399,000
Balances at Dec. 31, 2021		$ 354	$ 850,497	$ (82,754)	$ 0	$ 768,097
Net income (loss)		0	0	(148,727)	0	(148,727)
Cash dividends declared		$ 0	(27,492)	0	0	(27,492)
Stock based awards and amortization (in shares)		25,000
Stock based awards and amortization		$ 0	540	0	0	540
Balances (in shares) at Mar. 31, 2022		35,424,000
Balances at Mar. 31, 2022		$ 354	823,545	(231,481)	0	592,418
Balances (in shares) at Dec. 31, 2021		35,399,000
Balances at Dec. 31, 2021		$ 354	850,497	(82,754)	0	768,097
Net income (loss)						(293,379)
Unrealized gain on available-for-sale securities						$ 0
Balances (in shares) at Sep. 30, 2022		35,066,000				35,066,000
Balances at Sep. 30, 2022		$ 351	776,159	(376,133)	0	$ 400,377
Balances (in shares) at Dec. 31, 2021		35,399,000
Balances at Dec. 31, 2021		$ 354	850,497	(82,754)	0	$ 768,097
Issuance of common stock pursuant to public offerings, net (in shares)						3,885,048
Issuance of common stock pursuant to public offerings, net	[1]					$ 40,580
Balances (in shares) at Dec. 31, 2022		36,765,000
Balances at Dec. 31, 2022		$ 368	779,602	(341,207)	0	438,763
Balances (in shares) at Mar. 31, 2022		35,424,000
Balances at Mar. 31, 2022		$ 354	823,545	(231,481)	0	592,418
Net income (loss)		0	0	(60,139)	0	(60,139)
Cash dividends declared		$ 0	(23,936)	0	0	(23,936)
Stock based awards and amortization (in shares)		2,000
Stock based awards and amortization		$ 0	237	0	0	237
Shares repurchased and retired (in shares)		(175,000)
Shares repurchased and retired		$ (1)	(2,217)	0	0	(2,218)
Balances (in shares) at Jun. 30, 2022		35,251,000
Balances at Jun. 30, 2022		$ 353	797,629	(291,620)	0	506,362
Net income (loss)		0	0	(84,513)	0	(84,513)
Cash dividends declared		$ 0	(19,231)	0	0	(19,231)
Stock based awards and amortization (in shares)		1,000
Stock based awards and amortization		$ 0	143	0	0	143
Shares repurchased and retired (in shares)		(186,000)
Shares repurchased and retired		$ (2)	(2,382)	0	0	(2,384)
Unrealized gain on available-for-sale securities						$ 0
Balances (in shares) at Sep. 30, 2022		35,066,000				35,066,000
Balances at Sep. 30, 2022		$ 351	776,159	(376,133)	0	$ 400,377
Balances (in shares) at Dec. 31, 2022		36,765,000
Balances at Dec. 31, 2022		$ 368	779,602	(341,207)	0	438,763
Net income (loss)		0	0	3,530	0	3,530
Cash dividends declared		$ 0	(18,807)	0	0	(18,807)
Stock based awards and amortization (in shares)		4,000
Stock based awards and amortization		$ 0	181	0	0	181
Issuance of common stock pursuant to public offerings, net (in shares)		2,690,000
Issuance of common stock pursuant to public offerings, net		$ 26	31,631	0	0	31,657
Shares repurchased and retired (in shares)		(373,000)
Shares repurchased and retired		$ (3)	(3,960)	0	0	(3,963)
Balances (in shares) at Mar. 31, 2023		39,086,000
Balances at Mar. 31, 2023		$ 391	788,647	(337,677)	0	451,361
Balances (in shares) at Dec. 31, 2022		36,765,000
Balances at Dec. 31, 2022		$ 368	779,602	(341,207)	0	438,763
Net income (loss)						$ (66,353)
Issuance of common stock pursuant to public offerings, net (in shares)						15,880,039
Issuance of common stock pursuant to public offerings, net	[1]					$ 159,438
Unrealized gain on available-for-sale securities						$ 16
Balances (in shares) at Sep. 30, 2023		52,332,000				52,332,000
Balances at Sep. 30, 2023		$ 523	873,862	(407,560)	16	$ 466,841
Balances (in shares) at Mar. 31, 2023		39,086,000
Balances at Mar. 31, 2023		$ 391	788,647	(337,677)	0	451,361
Net income (loss)		0	0	10,249	0	10,249
Cash dividends declared		$ 0	(19,671)	0	0	(19,671)
Stock based awards and amortization (in shares)		53,000
Stock based awards and amortization		$ 1	790	0	0	791
Issuance of common stock pursuant to public offerings, net (in shares)		4,758,000
Issuance of common stock pursuant to public offerings, net		$ 47	47,308	0	0	47,355
Balances (in shares) at Jun. 30, 2023		43,897,000
Balances at Jun. 30, 2023		$ 439	817,074	(327,428)	0	490,085
Net income (loss)		0	0	(80,132)	0	(80,132)
Cash dividends declared		$ 0	(23,823)	0	0	(23,823)
Stock based awards and amortization (in shares)		3,000
Stock based awards and amortization		$ 0	269	0	0	269
Issuance of common stock pursuant to public offerings, net (in shares)		8,432,000
Issuance of common stock pursuant to public offerings, net		$ 84	80,342	0	0	80,426
Unrealized gain on available-for-sale securities		$ 0	0	0	16	$ 16
Balances (in shares) at Sep. 30, 2023		52,332,000				52,332,000
Balances at Sep. 30, 2023		$ 523	$ 873,862	$ (407,560)	$ 16	$ 466,841

[1] Net proceeds are net of the underwriters' discount, if applicable, and other offering costs.