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Non-interest Income and Expense - Components of Non-Interest Income (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2021 | Mar. 31, 2020
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | $ 10,476 | $ 9,126
Increase in cash value of life insurance | 673 | 720
Asset management and commission income | 834 | 916
Gain on sale of loans | 3,247 | 891
Lease brokerage income | 110 | 193
Sale of customer checks | 119 | 124
Gain on sale of investment securities | 0 | 0
(Loss) gain on marketable equity securities | (53) | 47
Other | 704 | (197)
Total other non-interest income | 5,634 | 2,694
Total non-interest income | 16,110 | 11,820
ATM and interchange fees |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | 5,861 | 5,111
Service charges on deposit accounts |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | 3,269 | 4,046
Other service fees |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | 871 | 758
Mortgage banking service fees |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | 463 | 469
Change in value of mortgage servicing rights |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |
Total service charges and fees | $ 12 | $ (1,258)

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- Definition Earnings on or other increases in the value of the cash surrender value of bank owned life insurance policies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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- Definition The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.13) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
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