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Deposits (Details) - USD ($) $ in Thousands | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2021 | Dec. 31, 2020
Deposits |  |
Deposits | $ 1,904,282 | $ 1,855,516
Average balance, deposits | $ 1,895,680 | $ 1,711,092
Deposits, weighted average interest rate during the period | 0.20% | 0.52%
Non-interest-bearing transaction accounts |  |
Deposits |  |
Deposits | $ 526,047 | $ 472,818
Average balance, deposits | $ 523,368 | $ 412,825
Deposits, weighted average interest rate during the period | 0.00% | 0.00%
Interest-bearing transaction accounts |  |
Deposits |  |
Deposits | $ 517,248 | $ 503,992
Average balance, deposits | $ 509,709 | $ 392,576
Deposits, weighted average interest rate during the period | 0.20% | 0.37%
Money market accounts |  |
Deposits |  |
Deposits | $ 728,751 | $ 641,504
Average balance, deposits | $ 674,858 | $ 651,402
Deposits, weighted average interest rate during the period | 0.17% | 0.44%
Certificates of deposit |  |
Deposits |  |
Deposits | $ 57,598 | $ 64,694
Average balance, deposits | $ 48,540 | $ 111,698
Deposits, weighted average interest rate during the period | 0.99% | 1.97%
Wholesale deposits |  |
Deposits |  |
Deposits | $ 74,638 | $ 172,508
Average balance, deposits | $ 139,205 | $ 142,591
Deposits, weighted average interest rate during the period | 0.79% | 1.71%

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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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