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Non-interest Income and Expense - Components of Non-Interest Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | $ 8,168 | $ 10,128 | $ 17,294 | $ 19,198
Increase in cash value of life insurance | 710 | 746 | 1,430 | 1,521
Asset management and commission income | 661 | 739 | 1,577 | 1,381
Gain on sale of loans | 1,736 | 575 | 2,627 | 987
Lease brokerage income | 127 | 239 | 320 | 459
Sale of customer checks | 88 | 135 | 212 | 275
Gain on marketable equity securities | 25 | 42 | 72 | 78
Other | 142 | 819 | (55) | 1,327
Total other non-interest income | 3,489 | 3,295 | 6,183 | 6,028
Total non-interest income | 11,657 | 13,423 | 23,477 | 25,226
ATM and interchange fees |  |  |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | 5,165 | 5,404 | 10,276 | 9,985
Service charges on deposit accounts |  |  |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | 3,046 | 4,182 | 7,092 | 8,062
Other service fees |  |  |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | 734 | 619 | 1,492 | 1,390
Mortgage banking service fees |  |  |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | 459 | 475 | 928 | 958
Change in value of mortgage servicing rights |  |  |  |
Schedule Of Other Noninterest Income And Expense [Line Items] |  |  |  |
Total service charges and fees | $ (1,236) | $ (552) | $ (2,494) | $ (1,197)

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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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