Financial Derivatives (Interest Rate Swaps) (Details) - Interest rate swaps - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Long
Derivative [Line Items]
Notional Amount	$ 1,212,360	$ 1,775,733
Fair Value	4,840	(48,628)
Long | 2023 [Member]
Derivative [Line Items]
Notional Amount		41,407
Fair Value		(84)
Long | 2024 [Member]
Derivative [Line Items]
Notional Amount	427,234	818,037
Fair Value	1,102	(25,569)
Long | 2025 [Member]
Derivative [Line Items]
Notional Amount	132,418	328,775
Fair Value	1,779	(5,468)
Long | 2026 [Member]
Derivative [Line Items]
Notional Amount	419,686	215,852
Fair Value	(4,343)	(11,312)
Long | 2027 [Member]
Derivative [Line Items]
Notional Amount	11,591	311,007
Fair Value	124	(1,067)
Long | 2028 [Member]
Derivative [Line Items]
Notional Amount	188,179
Fair Value	6,252
Long | 2032
Derivative [Line Items]
Notional Amount	2,700	59,155
Fair Value	(133)	(4,596)
Long | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(135)	(145)
Long | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(165)	(175)
Long | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(202)	$ (212)
Long | 2033
Derivative [Line Items]
Notional Amount	29,052
Fair Value	$ 561
Long | Weighted Average
Derivative [Line Items]
Pay Rate	4.30%	2.79%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	2 years 8 months 4 days	2 years 9 months 3 days
Long | Weighted Average | 2023 [Member]
Derivative [Line Items]
Pay Rate		2.00%
Receive Rate		4.74%
Remaining Years to Maturity		2 months 19 days
Long | Weighted Average | 2024 [Member]
Derivative [Line Items]
Pay Rate	5.17%	2.39%
Receive Rate	4.87%	4.27%
Remaining Years to Maturity	1 year	1 year 4 months 24 days
Long | Weighted Average | 2025 [Member]
Derivative [Line Items]
Pay Rate	4.88%	3.48%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	1 year 11 months 8 days	2 years 10 months 2 days
Long | Weighted Average | 2026 [Member]
Derivative [Line Items]
Pay Rate	3.41%	2.26%
Receive Rate	4.87%	4.32%
Remaining Years to Maturity	2 years 11 months 15 days	3 years 3 months
Long | Weighted Average | 2027 [Member]
Derivative [Line Items]
Pay Rate	3.74%	3.67%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	4 years 7 months 17 days	4 years 10 months 20 days
Long | Weighted Average | 2028 [Member]
Derivative [Line Items]
Pay Rate	4.14%
Receive Rate	4.87%
Remaining Years to Maturity	4 years 11 months 8 days
Long | Weighted Average | 2032
Derivative [Line Items]
Pay Rate	2.62%	2.58%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	9 years 1 month 2 days	9 years 6 months 29 days
Long | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.74%	0.74%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	12 years 6 months 21 days	12 years 9 months 21 days
Long | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.84%	0.84%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	17 years 6 months 25 days	17 years 9 months 25 days
Long | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	27 years 6 months 29 days	27 years 9 months 25 days
Long | Weighted Average | 2033
Derivative [Line Items]
Pay Rate	3.45%
Receive Rate	4.87%
Remaining Years to Maturity	9 years 10 months 20 days
Short
Derivative [Line Items]
Notional Amount	$ 2,386,333	$ 2,822,170
Fair Value	78,348	115,360
Short | 2023 [Member]
Derivative [Line Items]
Notional Amount	334,060	664,398
Fair Value	6,655	13,576
Short | 2024 [Member]
Derivative [Line Items]
Notional Amount	627,333	817,850
Fair Value	8,793	17,326
Short | 2025 [Member]
Derivative [Line Items]
Notional Amount	216,224	382,793
Fair Value	5,263	11,747
Short | 2026 [Member]
Derivative [Line Items]
Notional Amount	59,600	100
Fair Value	179	12
Short | 2027 [Member]
Derivative [Line Items]
Notional Amount	209,841	264,500
Fair Value	6,731	8,218
Short | 2028 [Member]
Derivative [Line Items]
Notional Amount	160,255	114,119
Fair Value	8,871	14,230
Short | 2029 [Member]
Derivative [Line Items]
Notional Amount	54,428	54,428
Fair Value	3,504	4,485
Short | 2030 [Member]
Derivative [Line Items]
Notional Amount	68,300	68,300
Fair Value	4,614	5,763
Short | 2031
Derivative [Line Items]
Notional Amount	161,009	161,009
Fair Value	20,352	23,799
Short | 2032
Derivative [Line Items]
Notional Amount	183,517	236,277
Fair Value	6,220	10,161
Short | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	132	142
Short | 2036 [Member]
Derivative [Line Items]
Notional Amount	1,100	1,100
Fair Value	239	267
Short | 2037
Derivative [Line Items]
Notional Amount	45,000	45,000
Fair Value	2,347	3,578
Short | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	159	171
Short | 2049 [Member]
Derivative [Line Items]
Notional Amount	5,796	5,796
Fair Value	484	630
Short | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	191	203
Short | 2052
Derivative [Line Items]
Notional Amount	5,000	5,000
Fair Value	876	$ 1,052
Short | 2033
Derivative [Line Items]
Notional Amount	253,370
Fair Value	$ 2,738
Short | Weighted Average
Derivative [Line Items]
Pay Rate	2.52%	2.27%
Receive Rate	4.89%	4.39%
Remaining Years to Maturity	4 years 5 months 15 days	3 years 5 months 19 days
Short | Weighted Average | 2023 [Member]
Derivative [Line Items]
Pay Rate	0.55%	0.64%
Receive Rate	4.92%	4.51%
Remaining Years to Maturity	3 months 29 days	4 months 17 days
Short | Weighted Average | 2024 [Member]
Derivative [Line Items]
Pay Rate	3.17%	3.03%
Receive Rate	4.89%	4.35%
Remaining Years to Maturity	1 year 4 months 9 days	1 year 6 months 18 days
Short | Weighted Average | 2025 [Member]
Derivative [Line Items]
Pay Rate	2.98%	2.89%
Receive Rate	4.87%	4.32%
Remaining Years to Maturity	2 years 1 month 13 days	2 years 6 months 3 days
Short | Weighted Average | 2026 [Member]
Derivative [Line Items]
Pay Rate	3.67%	0.79%
Receive Rate	4.87%	4.41%
Remaining Years to Maturity	2 years 11 months 1 day	3 years 6 months 29 days
Short | Weighted Average | 2027 [Member]
Derivative [Line Items]
Pay Rate	2.78%	3.01%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	4 years 2 months 12 days	4 years 6 months 10 days
Short | Weighted Average | 2028 [Member]
Derivative [Line Items]
Pay Rate	2.39%	1.44%
Receive Rate	4.87%	4.37%
Remaining Years to Maturity	5 years 10 days	5 years 5 months 26 days
Short | Weighted Average | 2029 [Member]
Derivative [Line Items]
Pay Rate	2.45%	2.45%
Receive Rate	4.97%	4.65%
Remaining Years to Maturity	6 years 25 days	6 years 3 months 21 days
Short | Weighted Average | 2030 [Member]
Derivative [Line Items]
Pay Rate	2.30%	2.30%
Receive Rate	4.88%	4.36%
Remaining Years to Maturity	7 years 1 month 20 days	7 years 4 months 20 days
Short | Weighted Average | 2031
Derivative [Line Items]
Pay Rate	1.71%	1.71%
Receive Rate	4.92%	4.48%
Remaining Years to Maturity	8 years 2 months 15 days	8 years 5 months 15 days
Short | Weighted Average | 2032
Derivative [Line Items]
Pay Rate	2.81%	2.98%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	9 years 3 months 25 days	9 years 7 months 17 days
Short | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.78%	0.78%
Receive Rate	4.83%	4.33%
Remaining Years to Maturity	12 years 6 months 21 days	12 years 9 months 21 days
Short | Weighted Average | 2036 [Member]
Derivative [Line Items]
Pay Rate	1.45%	1.45%
Receive Rate	4.92%	4.67%
Remaining Years to Maturity	12 years 10 months 20 days	13 years 1 month 17 days
Short | Weighted Average | 2037
Derivative [Line Items]
Pay Rate	2.81%	2.81%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	14 years 4 months 28 days	14 years 7 months 28 days
Short | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	4.83%	4.33%
Remaining Years to Maturity	17 years 6 months 25 days	17 years 9 months 25 days
Short | Weighted Average | 2049 [Member]
Derivative [Line Items]
Pay Rate	2.89%	2.89%
Receive Rate	4.77%	3.74%
Remaining Years to Maturity	25 years 9 months 10 days	26 years 7 days
Short | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.98%	0.98%
Receive Rate	4.83%	4.33%
Remaining Years to Maturity	27 years 6 months 29 days	27 years 9 months 25 days
Short | Weighted Average | 2052
Derivative [Line Items]
Pay Rate	2.07%	2.07%
Receive Rate	4.87%	4.30%
Remaining Years to Maturity	29 years 7 days	29 years 3 months 7 days
Short | Weighted Average | 2033
Derivative [Line Items]
Pay Rate	3.09%
Receive Rate	4.87%
Remaining Years to Maturity	9 years 11 months 1 day