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Portfolio Loans - Summary of risk grades segregated by category (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Loans
Portfolio loans	$ 7,272,873	$ 7,188,998
Pass
Loans
Portfolio loans	6,688,300	6,518,101
Watch
Loans
Portfolio loans	361,791	463,053
Special Mention
Loans
Portfolio loans	130,228	121,120
Substandard
Loans
Portfolio loans	80,066	70,778
Substandard Non-accrual
Loans
Portfolio loans	12,488	15,946
Commercial
Loans
Portfolio loans	1,906,595	1,943,886
Commercial | Pass
Loans
Portfolio loans	1,725,369	1,747,756
Commercial | Watch
Loans
Portfolio loans	73,471	93,582
Commercial | Special Mention
Loans
Portfolio loans	74,967	69,427
Commercial | Substandard
Loans
Portfolio loans	26,028	26,117
Commercial | Substandard Non-accrual
Loans
Portfolio loans	6,760	7,004
Commercial real estate
Loans
Portfolio loans	3,134,794	3,119,807
Commercial real estate | Pass
Loans
Portfolio loans	2,769,016	2,682,441
Commercial real estate | Watch
Loans
Portfolio loans	262,411	343,304
Commercial real estate | Special Mention
Loans
Portfolio loans	53,195	49,695
Commercial real estate | Substandard
Loans
Portfolio loans	47,567	38,394
Commercial real estate | Substandard Non-accrual
Loans
Portfolio loans	2,605	5,973
Real estate construction
Loans
Portfolio loans	445,428	385,996
Real estate construction | Pass
Loans
Portfolio loans	428,467	369,797
Real estate construction | Watch
Loans
Portfolio loans	14,557	13,793
Real estate construction | Special Mention
Loans
Portfolio loans	4	6
Real estate construction | Substandard
Loans
Portfolio loans	2,400	2,400
Retail real estate
Loans
Portfolio loans	1,544,365	1,512,976
Retail real estate | Pass
Loans
Portfolio loans	1,523,791	1,491,845
Retail real estate | Watch
Loans
Portfolio loans	11,352	12,374
Retail real estate | Special Mention
Loans
Portfolio loans	2,062	1,992
Retail real estate | Substandard
Loans
Portfolio loans	4,071	3,867
Retail real estate | Substandard Non-accrual
Loans
Portfolio loans	3,089	2,898
Retail other
Loans
Portfolio loans	241,691	226,333
Retail other | Pass
Loans
Portfolio loans	241,657	226,262
Retail other | Substandard Non-accrual
Loans
Portfolio loans	34	71
Commercial Loans
Loans
Portfolio loans	1,906,595	1,943,886
Commercial Real Estate Loans
Loans
Portfolio loans	3,134,794	3,119,807
Real Estate Construction
Loans
Portfolio loans	445,428	385,996
Retail real estate
Loans
Portfolio loans	1,544,365	1,512,976
Retail other
Loans
Portfolio loans	$ 241,691	$ 226,333

X

- Definition

Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124259787&loc=d3e4428-111522

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