Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
ASSETS
Cash and due from banks	$ 144,634	$ 116,591
Short-term investments	1,087,158	1,937,479
Cash and cash equivalents	1,231,792	2,054,070
Available for sale securities	8,511,224	3,183,861
Loans held for sale	1,206	1,140
Loans:
Total loans	12,281,510	9,730,525
Less: allowance for loan losses	(97,787)	(113,031)
Less: unamortized premiums, net of unearned discounts and deferred fees	(26,442)	(23,536)
Net loans	12,157,281	9,593,958
Federal Home Loan Bank stock, at cost	10,904	8,805
Premises and equipment	80,984	49,398
Bank-owned life insurance	157,091	78,561
Goodwill and other intangibles, net	649,703	376,534
Deferred income taxes, net	76,535	13,229
Prepaid expenses	179,330	148,680
Other assets	456,078	455,954
Total assets	23,512,128	15,964,190
Deposits:
Demand	7,020,864	4,910,794
Interest checking accounts	4,478,566	2,380,497
Savings accounts	2,077,495	1,256,736
Money market investment	5,525,005	3,348,898
Certificates of deposit	526,381	258,859
Total deposits	19,628,311	12,155,784
Borrowed funds:
Federal Home Loan Bank advances	14,020	14,624
Escrow deposits of borrowers	20,258	13,425
Total borrowed funds	34,278	28,049
Other liabilities	443,187	352,305
Total liabilities	20,105,776	12,536,138
Commitments and contingencies (see footnote 17)	0	0
Common shares, $0.01 par value, 1,000,000,000 shares authorized; 186,305,332 and 186,758,154 shares issued and outstanding at December 31, 2021 and 2020, respectively	1,863	1,868
Additional paid in capital	1,835,241	1,854,068
Unallocated common shares held by the Employee Stock Ownership Plan	(142,709)	(147,725)
Retained earnings	1,768,653	1,665,607
Accumulated other comprehensive income, net of tax	(56,696)	54,234
Total shareholders’ equity	3,406,352	3,428,052
Total liabilities and shareholders’ equity	23,512,128	15,964,190
Commercial and industrial | Commercial Portfolio Segment
Loans:
Total loans	2,960,527	1,995,016
Less: allowance for loan losses	(18,018)	(26,617)
Commercial real estate | Commercial Portfolio Segment
Loans:
Total loans	4,522,513	3,573,630
Less: allowance for loan losses	(52,373)	(54,569)
Commercial construction | Commercial Portfolio Segment
Loans:
Total loans	222,328	305,708
Less: allowance for loan losses	(2,585)	(4,553)
Business banking | Commercial Portfolio Segment
Loans:
Total loans	1,334,694	1,339,164
Residential real estate | Residential Portfolio Segment
Loans:
Total loans	1,926,810	1,370,957
Less: allowance for loan losses	(6,556)	(6,435)
Consumer home equity | Consumer Portfolio Segment
Loans:
Total loans	1,100,153	868,270
Less: allowance for loan losses	(3,722)	(3,744)
Other consumer | Consumer Portfolio Segment
Loans:
Total loans	$ 214,485	$ 277,780