Financial Derivatives (Interest Rate Swaps) (Details) - Interest rate swaps - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Long
Derivative [Line Items]
Notional Amount	$ 649,825	$ 474,741
Fair Value	(9,347)	(409)
Long | 2022 [Member]
Derivative [Line Items]
Notional Amount		53,974
Fair Value		475
Long | 2023 [Member]
Derivative [Line Items]
Notional Amount	159,299	241,407
Fair Value	(2,952)	(265)
Long | 2024 [Member]
Derivative [Line Items]
Notional Amount	258,488	37,142
Fair Value	(5,210)	556
Long | 2026 [Member]
Derivative [Line Items]
Notional Amount	230,538	105,040
Fair Value	(896)	(907)
Long | 2031
Derivative [Line Items]
Notional Amount		35,678
Fair Value		(114)
Long | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(79)	(41)
Long | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	(95)	(50)
Long | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	$ (115)	$ (63)
Long | Weighted Average
Derivative [Line Items]
Pay Rate	1.48%	1.06%
Receive Rate	0.32%	0.15%
Remaining Years to Maturity	2 years 7 months 2 days	2 years 11 months 8 days
Long | Weighted Average | 2022 [Member]
Derivative [Line Items]
Pay Rate		1.85%
Receive Rate		0.17%
Remaining Years to Maturity		1 month 28 days
Long | Weighted Average | 2023 [Member]
Derivative [Line Items]
Pay Rate	0.88%	0.73%
Receive Rate	0.42%	0.15%
Remaining Years to Maturity	1 year 4 months 20 days	1 year 8 months 8 days
Long | Weighted Average | 2024 [Member]
Derivative [Line Items]
Pay Rate	1.22%	1.59%
Receive Rate	0.24%	0.13%
Remaining Years to Maturity	1 year 10 months 28 days	2 years 9 months 10 days
Long | Weighted Average | 2026 [Member]
Derivative [Line Items]
Pay Rate	2.19%	1.10%
Receive Rate	0.33%	0.18%
Remaining Years to Maturity	4 years 21 days	4 years 8 months 19 days
Long | Weighted Average | 2031
Derivative [Line Items]
Pay Rate		1.48%
Receive Rate		0.15%
Remaining Years to Maturity		9 years 9 months 3 days
Long | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.74%	0.74%
Receive Rate	0.05%	0.05%
Remaining Years to Maturity	13 years 6 months 21 days	13 years 9 months 21 days
Long | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.84%	0.84%
Receive Rate	0.08%	0.08%
Remaining Years to Maturity	18 years 6 months 25 days	18 years 9 months 25 days
Long | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	0.08%	0.08%
Remaining Years to Maturity	28 years 6 months 29 days	28 years 9 months 25 days
Short
Derivative [Line Items]
Notional Amount	$ 1,821,991	$ 1,519,488
Fair Value	48,651	5,304
Short | 2022 [Member]
Derivative [Line Items]
Notional Amount		64,100
Fair Value		(282)
Short | 2023 [Member]
Derivative [Line Items]
Notional Amount	664,398	771,110
Fair Value	9,942	1,488
Short | 2024 [Member]
Derivative [Line Items]
Notional Amount	612,412	314,762
Fair Value	16,887	3,685
Short | 2025 [Member]
Derivative [Line Items]
Notional Amount	188,993	14,993
Fair Value	1,438	426
Short | 2026 [Member]
Derivative [Line Items]
Notional Amount	100	30,625
Fair Value	(5)	481
Short | 2027 [Member]
Derivative [Line Items]
Notional Amount		14,732
Fair Value		448
Short | 2028 [Member]
Derivative [Line Items]
Notional Amount	149,524	149,524
Fair Value	9,187	470
Short | 2029 [Member]
Derivative [Line Items]
Notional Amount	19,152	19,152
Fair Value	488	(801)
Short | 2030 [Member]
Derivative [Line Items]
Notional Amount	8,900	9,585
Fair Value	901	291
Short | 2031
Derivative [Line Items]
Notional Amount	122,509	122,509
Fair Value	9,176	535
Short | 2035
Derivative [Line Items]
Notional Amount	500	500
Fair Value	77	38
Short | 2036 [Member]
Derivative [Line Items]
Notional Amount	1,100	1,100
Fair Value	121	25
Short | 2040
Derivative [Line Items]
Notional Amount	500	500
Fair Value	90	45
Short | 2049 [Member]
Derivative [Line Items]
Notional Amount	5,796	5,796
Fair Value	(754)	(1,599)
Short | 2050
Derivative [Line Items]
Notional Amount	500	500
Fair Value	106	$ 54
Short | 2032
Derivative [Line Items]
Notional Amount	42,607
Fair Value	1,115
Short | 2052
Derivative [Line Items]
Notional Amount	5,000
Fair Value	$ (118)
Short | Weighted Average
Derivative [Line Items]
Pay Rate	1.02%	0.75%
Receive Rate	0.42%	0.18%
Remaining Years to Maturity	3 years 18 days	3 years 1 month 9 days
Short | Weighted Average | 2022 [Member]
Derivative [Line Items]
Pay Rate		0.99%
Receive Rate		0.18%
Remaining Years to Maturity		2 months 4 days
Short | Weighted Average | 2023 [Member]
Derivative [Line Items]
Pay Rate	0.64%	0.58%
Receive Rate	0.56%	0.19%
Remaining Years to Maturity	1 year 1 month 17 days	1 year 6 months 7 days
Short | Weighted Average | 2024 [Member]
Derivative [Line Items]
Pay Rate	0.84%	0.43%
Receive Rate	0.27%	0.16%
Remaining Years to Maturity	1 year 11 months 1 day	2 years 2 months 23 days
Short | Weighted Average | 2025 [Member]
Derivative [Line Items]
Pay Rate	2.10%	0.49%
Receive Rate	0.25%	0.16%
Remaining Years to Maturity	3 years 14 days	3 years 9 months 21 days
Short | Weighted Average | 2026 [Member]
Derivative [Line Items]
Pay Rate	0.79%	0.89%
Receive Rate	0.30%	0.15%
Remaining Years to Maturity	4 years 3 months 29 days	4 years 5 months 23 days
Short | Weighted Average | 2027 [Member]
Derivative [Line Items]
Pay Rate		0.80%
Receive Rate		0.19%
Remaining Years to Maturity		5 years 7 months 6 days
Short | Weighted Average | 2028 [Member]
Derivative [Line Items]
Pay Rate	1.33%	1.33%
Receive Rate	0.55%	0.17%
Remaining Years to Maturity	6 years 3 months 18 days	6 years 6 months 18 days
Short | Weighted Average | 2029 [Member]
Derivative [Line Items]
Pay Rate	1.98%	1.98%
Receive Rate	0.44%	0.16%
Remaining Years to Maturity	7 years 3 months 18 days	7 years 6 months 18 days
Short | Weighted Average | 2030 [Member]
Derivative [Line Items]
Pay Rate	0.99%	1.09%
Receive Rate	0.57%	0.18%
Remaining Years to Maturity	7 years 11 months 4 days	8 years 2 months 23 days
Short | Weighted Average | 2031
Derivative [Line Items]
Pay Rate	1.45%	1.45%
Receive Rate	0.59%	0.17%
Remaining Years to Maturity	9 years 2 months 19 days	9 years 5 months 19 days
Short | Weighted Average | 2035
Derivative [Line Items]
Pay Rate	0.78%	0.78%
Receive Rate	0.08%	0.08%
Remaining Years to Maturity	13 years 6 months 21 days	13 years 9 months 21 days
Short | Weighted Average | 2036 [Member]
Derivative [Line Items]
Pay Rate	1.45%	1.45%
Receive Rate	0.49%	0.16%
Remaining Years to Maturity	13 years 10 months 20 days	14 years 1 month 17 days
Short | Weighted Average | 2040
Derivative [Line Items]
Pay Rate	0.90%	0.90%
Receive Rate	0.08%	0.08%
Remaining Years to Maturity	18 years 6 months 25 days	18 years 9 months 25 days
Short | Weighted Average | 2049 [Member]
Derivative [Line Items]
Pay Rate	2.89%	2.89%
Receive Rate	0.21%	0.13%
Remaining Years to Maturity	26 years 9 months 10 days	27 years 7 days
Short | Weighted Average | 2050
Derivative [Line Items]
Pay Rate	0.98%	0.98%
Receive Rate	0.08%	0.08%
Remaining Years to Maturity	28 years 6 months 29 days	28 years 9 months 25 days
Short | Weighted Average | 2032
Derivative [Line Items]
Pay Rate	1.80%
Receive Rate	0.05%
Remaining Years to Maturity	9 years 11 months 15 days
Short | Weighted Average | 2052
Derivative [Line Items]
Pay Rate	2.07%
Receive Rate	0.28%
Remaining Years to Maturity	30 years 7 days