STATEMENT OF CHANGES IN EQUITY - USD ($) $ in Thousands	Total	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Shares issued, beginning balance at Dec. 31, 2020		53,166,733
Equity, beginning balance at Dec. 31, 2020	$ 2,233,311	$ 532	$ 1,756,921	$ 483,635	$ (7,777)
Net income	95,575	0	0	95,575	0
Other comprehensive income	300	$ 0	0	0	300
Common stock issued, shares		78,278
Common stock issued, value	(1,705)	$ 0	(1,705)	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	(30,882)	$ 0	260	(31,142)	0
Shares issued, ending balance at Mar. 31, 2021		53,245,011
Equity, ending balance at Mar. 31, 2021	$ 2,296,599	$ 532	1,755,476	548,068	(7,477)
Dividends paid per share of stock	$ 0.58
Shares issued, beginning balance at Dec. 31, 2020		53,166,733
Equity, beginning balance at Dec. 31, 2020	$ 2,233,311	$ 532	1,756,921	483,635	(7,777)
Net income	145,922
Other comprehensive income	899
Shares issued, ending balance at Sep. 30, 2021		53,584,326
Equity, ending balance at Sep. 30, 2021	2,315,098	$ 536	1,785,476	535,964	(6,878)
Shares issued, beginning balance at Mar. 31, 2021		53,245,011
Equity, beginning balance at Mar. 31, 2021	2,296,599	$ 532	1,755,476	548,068	(7,477)
Net income	30,093	0	0	30,093	0
Other comprehensive income	299	$ 0	0	0	299
Common stock issued, shares		254,226
Common stock issued, value	21,178	$ 3	21,175	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	(30,903)	$ 0	260	(31,163)	0
Shares issued, ending balance at Jun. 30, 2021		53,499,237
Equity, ending balance at Jun. 30, 2021	$ 2,317,266	$ 535	1,776,911	546,998	(7,178)
Dividends paid per share of stock	$ 0.58
Net income	$ 20,253	0	0	20,253	0
Other comprehensive income	300	$ 0	0	0	300
Common stock issued, shares		85,089
Common stock issued, value	8,325	$ 1	8,324	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	(31,046)	$ 0	241	(31,287)	0
Shares issued, ending balance at Sep. 30, 2021		53,584,326
Equity, ending balance at Sep. 30, 2021	$ 2,315,098	$ 536	1,785,476	535,964	(6,878)
Dividends paid per share of stock	$ 0.58
Shares issued, beginning balance at Dec. 31, 2021	53,633,210	53,633,210
Equity, beginning balance at Dec. 31, 2021	$ 2,349,532	$ 536	1,790,362	565,161	(6,527)
Net income	98,934	0	0	98,934	0
Other comprehensive income	69	$ 0	0	0	69
Common stock issued, shares		456,607
Common stock issued, value	34,140	$ 5	34,135	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	(33,285)	$ 0	274	(33,559)	0
Shares issued, ending balance at Mar. 31, 2022		54,089,817
Equity, ending balance at Mar. 31, 2022	$ 2,449,390	$ 541	1,824,771	630,536	(6,458)
Dividends paid per share of stock	$ 0.62
Shares issued, beginning balance at Dec. 31, 2021	53,633,210	53,633,210
Equity, beginning balance at Dec. 31, 2021	$ 2,349,532	$ 536	1,790,362	565,161	(6,527)
Net income	154,710
Other comprehensive income	$ 111
Shares issued, ending balance at Sep. 30, 2022	54,137,925	54,137,925
Equity, ending balance at Sep. 30, 2022	$ 2,446,274	$ 541	1,833,480	618,669	(6,416)
Shares issued, beginning balance at Mar. 31, 2022		54,089,817
Equity, beginning balance at Mar. 31, 2022	2,449,390	$ 541	1,824,771	630,536	(6,458)
Net income	32,075	0	0	32,075	0
Other comprehensive income	30	$ 0	0	0	30
Common stock issued, shares		47,400
Common stock issued, value	5,636	$ 0	5,636	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	(33,535)	$ 0	271	(33,806)	0
Shares issued, ending balance at Jun. 30, 2022		54,137,217
Equity, ending balance at Jun. 30, 2022	$ 2,453,596	$ 541	1,830,678	628,805	(6,428)
Dividends paid per share of stock	$ 0.62
Net income	$ 23,701	0	0	23,701	0
Other comprehensive income	12	$ 0	0	0	12
Common stock issued, shares		708
Common stock issued, value	2,531	$ 0	2,531	0	0
Common stock dividends - $0.62 and $0.58 per share per quarter as of 2022 and 2021, respectively	$ (33,566)	$ 0	271	(33,837)	0
Shares issued, ending balance at Sep. 30, 2022	54,137,925	54,137,925
Equity, ending balance at Sep. 30, 2022	$ 2,446,274	$ 541	$ 1,833,480	$ 618,669	$ (6,416)
Dividends paid per share of stock	$ 0.62