Derivative Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended	12 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Dec. 31, 2020
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			$ 14,222	$ 16,782
Liability Derivatives			7,738	11,754
Interest-Rate Cap Agreements [Member]
Derivative financial instrument according to type of hedge [Abstract]
Unrealized loss on derivative instrument to be reclassified into earnings	$ (500)	$ (2,000)
Fair Value Hedge Designation [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 155,818	$ 49,038
Average Maturity			6 years 4 months 24 days	7 years 3 months 18 days
Fair Value			$ 2,138	$ (761)
No Hedge Designation [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 747,744	$ 815,576
Average Maturity			2 years 2 months 12 days	2 years
Fair Value			$ 4,346	$ 5,789
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			11,568	16,767
Liability Derivatives			7,222	10,978
No Hedge Designation [Member] | Rate-Lock Mortgage Loan Commitments [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 165,181	$ 168,816
Average Maturity			1 month 6 days	1 month 6 days
Fair Value			$ 4,356	$ 7,020
No Hedge Designation [Member] | Mandatory Commitments to Sell Mortgage Loans [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 124,141	$ 186,092
Average Maturity			1 month 6 days	1 month 6 days
Fair Value			$ (131)	$ (941)
No Hedge Designation [Member] | Interest Rate Swaption Agreement [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 10,000
Average Maturity			8 months 12 days
Fair Value			$ 162
No Hedge Designation [Member] | Interest-Rate Cap Agreements [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 120,000	$ 135,000
Average Maturity			1 year 4 months 24 days	1 year 9 months 18 days
Fair Value			$ 16	$ 5
No Hedge Designation [Member] | Purchased Options [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 1,777	$ 2,908
Average Maturity			2 months 12 days	6 months
Fair Value			$ 71	$ 42
No Hedge Designation [Member] | Written Options [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 1,777	$ 2,848
Average Maturity			2 months 12 days	6 months
Fair Value			$ (71)	$ (42)
Fixed Income Interest Rate [Member] | Fair Value Hedge Designation [Member] | Interest Rate Swap [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 6,923	$ 7,088
Average Maturity			7 years 10 months 24 days	8 years 4 months 24 days
Fair Value			$ (516)	$ (776)
Fixed Income Interest Rate [Member] | Fair Value Hedge Designation [Member] | Interest Rate Swap [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 148,895	$ 41,950
Average Maturity			6 years 3 months 18 days	7 years 1 month 6 days
Fair Value			$ 2,654	$ 15
Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 154,934	$ 147,456
Average Maturity			4 years 7 months 6 days	4 years 6 months
Fair Value			$ (6,873)	$ (9,700)
Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 15,000	$ 25,000
Average Maturity			2 months 12 days	7 months 6 days
Fair Value			$ (57)	$ (295)
Variable Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Derivative financial instrument according to type of hedge [Abstract]
Notional Amount			$ 154,934	$ 147,456
Average Maturity			4 years 7 months 6 days	4 years 6 months
Fair Value			$ 6,873	$ 9,700
Other Assets [Member] | No Hedge Designation [Member] | Rate-Lock Mortgage Loan Commitments [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			4,356	7,020
Other Assets [Member] | No Hedge Designation [Member] | Mandatory Commitments to Sell Mortgage Loans [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			0	0
Other Assets [Member] | No Hedge Designation [Member] | Interest Rate Swaption Agreement [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			162	0
Other Assets [Member] | No Hedge Designation [Member] | Interest-Rate Cap Agreements [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			16	5
Other Assets [Member] | No Hedge Designation [Member] | Purchased Options [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			71	42
Other Assets [Member] | No Hedge Designation [Member] | Written Options [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			0	0
Other Assets [Member] | Fixed Income Interest Rate [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			2,654	15
Other Assets [Member] | Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			45	0
Other Assets [Member] | Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			0	0
Other Assets [Member] | Variable Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Asset Derivatives			6,918	9,700
Other Liabilities [Member] | Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			516	776
Other Liabilities [Member] | No Hedge Designation [Member] | Rate-Lock Mortgage Loan Commitments [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			0	0
Other Liabilities [Member] | No Hedge Designation [Member] | Mandatory Commitments to Sell Mortgage Loans [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			131	941
Other Liabilities [Member] | No Hedge Designation [Member] | Interest Rate Swaption Agreement [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			0	0
Other Liabilities [Member] | No Hedge Designation [Member] | Interest-Rate Cap Agreements [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			0	0
Other Liabilities [Member] | No Hedge Designation [Member] | Purchased Options [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			0	0
Other Liabilities [Member] | No Hedge Designation [Member] | Written Options [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			71	42
Other Liabilities [Member] | Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			6,918	9,700
Other Liabilities [Member] | Fixed Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			57	295
Other Liabilities [Member] | Variable Income Interest Rate [Member] | No Hedge Designation [Member] | Interest Rate Swap [Member]
Fair value of derivative instruments, balance sheet location [Abstract]
Liability Derivatives			$ 45	$ 0