Financial Derivatives (Interest Rate Swaps) (Details) - Interest rate swaps - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Long
Derivative [Line Items]
Notional Amount	$ 2,220,729	$ 1,859,330
Fair Value	(4,180)	13,557
Long | 2024
Derivative [Line Items]
Notional Amount	52,236	427,234
Fair Value	(699)	(578)
Long | 2025
Derivative [Line Items]
Notional Amount	143,183	143,183
Fair Value	(360)	67
Long | 2026
Derivative [Line Items]
Notional Amount	503,256	461,658
Fair Value	(580)	(8,399)
Long | 2027
Derivative [Line Items]
Notional Amount	121,157	36,591
Fair Value	(1,665)	30
Long | 2028
Derivative [Line Items]
Notional Amount	517,220	464,799
Fair Value	4,069	13,357
Long | 2029
Derivative [Line Items]
Notional Amount	372,044
Fair Value	(1,180)
Long | 2030
Derivative [Line Items]
Notional Amount	116,000	67,000
Fair Value	(267)	1,737
Long | 2031
Derivative [Line Items]
Notional Amount	35,000
Fair Value	(659)
Long | 2033
Derivative [Line Items]
Notional Amount	225,931	198,265
Fair Value	843	7,701
Long | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(154)	(137)
Long | 2038
Derivative [Line Items]
Notional Amount	36,300	36,300
Fair Value	(1,362)	131
Long | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(192)	(173)
Long | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(242)	(220)
Long | 2053
Derivative [Line Items]
Notional Amount	13,795	22,800
Fair Value	(786)	$ 41
Long | 2034
Derivative [Line Items]
Notional Amount	69,930
Fair Value	(640)
Long | 2039
Derivative [Line Items]
Notional Amount	13,177
Fair Value	$ (306)
Long | Weighted Average
Derivative [Line Items]
Pay Rate	4.19%	4.28%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	4 years 9 months 10 days	3 years 11 months 4 days
Long | Weighted Average | 2024
Derivative [Line Items]
Pay Rate	3.56%	5.17%
Receive Rate	5.43%	5.40%
Remaining Years to Maturity	7 months 2 days	2 months 26 days
Long | Weighted Average | 2025
Derivative [Line Items]
Pay Rate	4.87%	4.87%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	11 months 23 days	1 year 2 months 23 days
Long | Weighted Average | 2026
Derivative [Line Items]
Pay Rate	4.56%	3.58%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	1 year 11 months 23 days	2 years 3 months 10 days
Long | Weighted Average | 2027
Derivative [Line Items]
Pay Rate	3.88%	3.68%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	2 years 11 months 23 days	3 years 10 months 24 days
Long | Weighted Average | 2028
Derivative [Line Items]
Pay Rate	4.31%	4.33%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	4 years 4 months 6 days	4 years 7 months 20 days
Long | Weighted Average | 2029
Derivative [Line Items]
Pay Rate	3.95%
Receive Rate	5.33%
Remaining Years to Maturity	4 years 10 months 28 days
Long | Weighted Average | 2030
Derivative [Line Items]
Pay Rate	3.94%	3.97%
Receive Rate	5.34%	5.39%
Remaining Years to Maturity	6 years 5 months 1 day	6 years 9 months 7 days
Long | Weighted Average | 2031
Derivative [Line Items]
Pay Rate	3.64%
Receive Rate	5.33%
Remaining Years to Maturity	6 years 9 months 14 days
Long | Weighted Average | 2033
Derivative [Line Items]
Pay Rate	3.94%	3.96%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	9 years 7 months 20 days	9 years 10 months 17 days
Long | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.74%	0.74%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	11 years 6 months 21 days	11 years 9 months 21 days
Long | Weighted Average | 2038
Derivative [Line Items]
Pay Rate	3.54%	3.54%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	14 years 8 months 23 days	14 years 11 months 23 days
Long | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.84%	0.84%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	16 years 6 months 25 days	16 years 9 months 25 days
Long | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	26 years 6 months 25 days	26 years 9 months 25 days
Long | Weighted Average | 2053
Derivative [Line Items]
Pay Rate	3.33%	3.33%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	29 years 8 months 26 days	29 years 11 months 26 days
Long | Weighted Average | 2034
Derivative [Line Items]
Pay Rate	3.74%
Receive Rate	5.33%
Remaining Years to Maturity	9 years 10 months 24 days
Long | Weighted Average | 2039
Derivative [Line Items]
Pay Rate	3.65%
Receive Rate	5.33%
Remaining Years to Maturity	14 years 9 months 29 days
Short
Derivative [Line Items]
Notional Amount	$ 3,307,192	$ 3,129,277
Fair Value	122,642	83,937
Short | 2024
Derivative [Line Items]
Notional Amount	482,811	629,547
Fair Value	6,294	9,097
Short | 2025
Derivative [Line Items]
Notional Amount	414,561	412,701
Fair Value	8,473	6,304
Short | 2026
Derivative [Line Items]
Notional Amount	189,287	189,287
Fair Value	2,219	(573)
Short | 2027
Derivative [Line Items]
Notional Amount	228,250	174,841
Fair Value	13,283	8,970
Short | 2028
Derivative [Line Items]
Notional Amount	582,656	650,990
Fair Value	15,885	7,516
Short | 2029
Derivative [Line Items]
Notional Amount	220,788	53,011
Fair Value	7,247	4,378
Short | 2030
Derivative [Line Items]
Notional Amount	199,817	150,817
Fair Value	5,477	1,122
Short | 2031
Derivative [Line Items]
Notional Amount	157,766	157,766
Fair Value	25,740	24,131
Short | 2032
Derivative [Line Items]
Notional Amount	181,867	181,867
Fair Value	14,883	11,069
Short | 2033
Derivative [Line Items]
Notional Amount	465,285	437,619
Fair Value	16,540	6,960
Short | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	150	132
Short | 2036
Derivative [Line Items]
Notional Amount	1,102	1,102
Fair Value	281	280
Short | 2037
Derivative [Line Items]
Notional Amount	45,000	45,000
Fair Value	5,498	3,780
Short | 2038
Derivative [Line Items]
Notional Amount	32,500	32,500
Fair Value	(373)	(1,727)
Short | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	186	165
Short | 2049
Derivative [Line Items]
Notional Amount		5,729
Fair Value		845
Short | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	232	207
Short | 2052
Derivative [Line Items]
Notional Amount		5,000
Fair Value		$ 1,281
Short | 2053
Derivative [Line Items]
Notional Amount	1,600
Fair Value	91
Short | 2034
Derivative [Line Items]
Notional Amount	89,710
Fair Value	429
Short | 2039
Derivative [Line Items]
Notional Amount	12,292
Fair Value	114
Short | 2054
Derivative [Line Items]
Notional Amount	400
Fair Value	$ (7)
Short | Weighted Average
Derivative [Line Items]
Pay Rate	3.44%	3.34%
Receive Rate	5.34%	5.33%
Remaining Years to Maturity	4 years 10 months 6 days	4 years 8 months 4 days
Short | Weighted Average | 2024
Derivative [Line Items]
Pay Rate	3.97%	3.18%
Receive Rate	5.35%	5.41%
Remaining Years to Maturity	6 months 10 days	7 months 9 days
Short | Weighted Average | 2025
Derivative [Line Items]
Pay Rate	3.69%	3.69%
Receive Rate	5.33%	5.06%
Remaining Years to Maturity	1 year 4 months 28 days	1 year 7 months 28 days
Short | Weighted Average | 2026
Derivative [Line Items]
Pay Rate	4.13%	4.13%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	2 years 4 months 28 days	2 years 7 months 28 days
Short | Weighted Average | 2027
Derivative [Line Items]
Pay Rate	2.91%	4.04%
Receive Rate	5.34%	5.04%
Remaining Years to Maturity	3 years 1 month 24 days	3 years 4 months 6 days
Short | Weighted Average | 2028
Derivative [Line Items]
Pay Rate	3.51%	3.48%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	4 years 3 months 18 days	4 years 6 months 14 days
Short | Weighted Average | 2029
Derivative [Line Items]
Pay Rate	3.36%	2.19%
Receive Rate	5.33%	5.38%
Remaining Years to Maturity	4 years 10 months 13 days	5 years 3 months 25 days
Short | Weighted Average | 2030
Derivative [Line Items]
Pay Rate	3.60%	3.50%
Receive Rate	5.34%	5.39%
Remaining Years to Maturity	6 years 3 months 25 days	6 years 7 months 2 days
Short | Weighted Average | 2031
Derivative [Line Items]
Pay Rate	1.51%	1.51%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	7 years 2 months 15 days	7 years 5 months 15 days
Short | Weighted Average | 2032
Derivative [Line Items]
Pay Rate	2.80%	2.80%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	8 years 3 months 21 days	8 years 6 months 21 days
Short | Weighted Average | 2033
Derivative [Line Items]
Pay Rate	3.42%	3.40%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	9 years 2 months 12 days	9 years 5 months 1 day
Short | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.78%	0.78%
Receive Rate	5.33%	5.33%
Remaining Years to Maturity	11 years 6 months 21 days	11 years 9 months 21 days
Short | Weighted Average | 2036
Derivative [Line Items]
Pay Rate	1.19%	1.19%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	11 years 10 months 17 days	12 years 1 month 17 days
Short | Weighted Average | 2037
Derivative [Line Items]
Pay Rate	2.81%	2.81%
Receive Rate	5.34%	5.38%
Remaining Years to Maturity	13 years 4 months 28 days	13 years 7 months 28 days
Short | Weighted Average | 2038
Derivative [Line Items]
Pay Rate	4.01%	4.01%
Receive Rate	5.33%	5.39%
Remaining Years to Maturity	14 years 5 months 1 day	14 years 8 months 1 day
Short | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	5.33%	5.33%
Remaining Years to Maturity	16 years 6 months 25 days	16 years 9 months 25 days
Short | Weighted Average | 2049
Derivative [Line Items]
Pay Rate		2.63%
Receive Rate		5.38%
Remaining Years to Maturity		25 years 7 days
Short | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.98%	0.98%
Receive Rate	5.33%	5.33%
Remaining Years to Maturity	26 years 6 months 25 days	26 years 9 months 25 days
Short | Weighted Average | 2052
Derivative [Line Items]
Pay Rate		2.07%
Receive Rate		5.38%
Remaining Years to Maturity		28 years 3 months 7 days
Short | Weighted Average | 2053
Derivative [Line Items]
Pay Rate	3.32%
Receive Rate	5.33%
Remaining Years to Maturity	29 years 9 months
Short | Weighted Average | 2034
Derivative [Line Items]
Pay Rate	3.80%
Receive Rate	5.33%
Remaining Years to Maturity	9 years 10 months 20 days
Short | Weighted Average | 2039
Derivative [Line Items]
Pay Rate	3.77%
Receive Rate	5.33%
Remaining Years to Maturity	14 years 10 months 6 days
Short | Weighted Average | 2054
Derivative [Line Items]
Pay Rate	3.72%
Receive Rate	5.33%
Remaining Years to Maturity	29 years 11 months 1 day