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Deposits (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Deposits, by Type [Abstract] |  |  |
Non-interest bearing demand | $ 5,568,300 | $ 4,633,500 |
Interest bearing: |  |  |
Demand | 4,753,200 | 4,118,900 |
Savings | 4,981,600 | 4,405,900 |
Total | 186,700 | 193,000 |
Time, other | 779,800 | 865,700 |
Total interest bearing | 10,701,300 | 9,583,500 |
Total deposits | 16,269,600 | 14,217,000 |
Brokered time deposits | 0 |  |
Time deposits obtained through Certificate of Deposit Account Registry Service (CDARS) | 104,500 | 97,300 |
Time deposits of $250,000 or more | 186,700 | 193,000 |
FDIC deposit insurance limit | 250,000 |  |
Time, $250 and Over |  |  |
Due within 3 months or less | 38,800 |  |
Due after 3 months and within 6 months | 47,200 |  |
Due after 6 months and within 12 months | 70,600 |  |
Due within 2023 | 18,100 |  |
Due within 2024 | 4,500 |  |
Due within 2025 | 4,400 |  |
Due within 2026 and thereafter | 3,100 |  |
Total | 186,700 | 193,000 |
Total Time |  |  |
Due within 3 months or less | 272,700 |  |
Due after 3 months and within 6 months | 209,700 |  |
Due after 6 months and within 12 months | 293,700 |  |
Due within 2023 | 100,600 |  |
Due within 2024 | 43,700 |  |
Due within 2025 | 28,700 |  |
Due within 2026 and thereafter | 17,400 |  |
Total | 966,500 |  |
Interest expense, time deposits, $100,000 or more | $ 900 | $ 2,700 | $ 4,600

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- Definition Amount of time deposit liabilities, including certificates of deposit, in denominations of $100,000 or more, maturing after twelve months from the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher SEC -Name Industry Guide -Number 3 -Section V -Paragraph D-E + Details
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- Definition The amount of money in accounts that may bear interest and that the depositor is entitled to withdraw at any time without prior notice. + 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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