Investment Securities, Debt Securities by Credit Rating (Details) - USD ($) $ in Thousands		Sep. 30, 2022	Dec. 31, 2021
Available-for-sale [Abstract]
Fair value		$ 177,454	$ 270,454
AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		9,736
Held-to-Maturity [Abstract]
Amortized cost		18,025
BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		4,799
Held-to-Maturity [Abstract]
Amortized cost		386
Not Rated [Member]
Available-for-sale [Abstract]
Fair value		162,919
Held-to-Maturity [Abstract]
Amortized cost		834,254
U.S. Treasury Notes [Member]
Available-for-sale [Abstract]
Fair value		4,941	10,089
U.S. Treasury Notes [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		4,941
Held-to-Maturity [Abstract]
Amortized cost		0
U.S. Treasury Notes [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
U.S. Treasury Notes [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
U.S. Government-sponsored Securities [Member]
Available-for-sale [Abstract]
Fair value		4,698	6,374
U.S. Government-sponsored Securities [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
U.S. Government-sponsored Securities [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
U.S. Government-sponsored Securities [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value		4,698
Held-to-Maturity [Abstract]
Amortized cost		0
Mortgage-backed Securities [Member]
Available-for-sale [Abstract]
Fair value	[1]	156,453	251,120
Mortgage-backed Securities [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value	[2]	0
Held-to-Maturity [Abstract]
Amortized cost	[2]	0
Mortgage-backed Securities [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value	[2]	0
Held-to-Maturity [Abstract]
Amortized cost	[2]	0
Mortgage-backed Securities [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value	[2]	156,453
Held-to-Maturity [Abstract]
Amortized cost	[2]	709,541
Collateralized Mortgage Obligations [Member]
Available-for-sale [Abstract]
Fair value	[1]	1,458	2,436
Collateralized Mortgage Obligations [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value	[2]	0
Held-to-Maturity [Abstract]
Amortized cost	[2]	0
Collateralized Mortgage Obligations [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value	[2]	0
Held-to-Maturity [Abstract]
Amortized cost	[2]	0
Collateralized Mortgage Obligations [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value	[2]	1,458
Held-to-Maturity [Abstract]
Amortized cost	[2]	82,297
Municipal Securities [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		18,025
Municipal Securities [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		386
Municipal Securities [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		42,416
Corporate Securities [Member]
Available-for-sale [Abstract]
Fair value		9,594
Corporate Securities [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		4,795
Held-to-Maturity [Abstract]
Amortized cost		0
Corporate Securities [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		4,799
Held-to-Maturity [Abstract]
Amortized cost		0
Corporate Securities [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
Other [Member]
Available-for-sale [Abstract]
Fair value		310	$ 435
Other [Member] | AAA/AA/A Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
Other [Member] | BBB/BB/B Rating [Member]
Available-for-sale [Abstract]
Fair value		0
Held-to-Maturity [Abstract]
Amortized cost		0
Other [Member] | Not Rated [Member]
Available-for-sale [Abstract]
Fair value		310
Held-to-Maturity [Abstract]
Amortized cost		$ 0

[1] All mortgage-backed securities and collateralized mortgage obligations were issued by an agency or government sponsored entity of the U.S. Government.

[2] All mortgage-backed securities and collateralized mortgage obligations were issued by an agency or government sponsored entity of the U.S. government.