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Loans and Allowance for Credit Losses - Schedule of Activity in Allowance for Loan Losses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | $ 107,341 | $ 131,388
Allowance Established for Acquired PCD Loans | 78,531 | 0
Charge-offs | (4,664) | (1,570)
Recoveries | 1,890 | 1,575
Provision for Credit Losses | 97,409 | (17,356)
Balance at End of Period | 280,507 | 114,037
Commercial |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 27,232 | 30,567
Allowance Established for Acquired PCD Loans | 35,040 | 0
Charge-offs | (1,880) | (407)
Recoveries | 325 | 238
Provision for Credit Losses | 38,754 | (5,268)
Balance at End of Period | 99,471 | 25,130
Commercial real estate |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 64,004 | 75,810
Allowance Established for Acquired PCD Loans | 42,601 | 0
Charge-offs | (507) | (1)
Recoveries | 182 | 73
Provision for Credit Losses | 34,210 | (5,321)
Balance at End of Period | 140,490 | 70,561
BBCC |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 2,458 | 6,120
Allowance Established for Acquired PCD Loans | 0 | 0
Charge-offs | (28) | (36)
Recoveries | 57 | 41
Provision for Credit Losses | (418) | (3,588)
Balance at End of Period | 2,069 | 2,537
Residential real estate |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 9,347 | 12,608
Allowance Established for Acquired PCD Loans | 136 | 0
Charge-offs | (185) | (158)
Recoveries | 440 | 87
Provision for Credit Losses | 7,514 | (2,272)
Balance at End of Period | 17,252 | 10,265
Indirect |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 1,743 | 3,580
Allowance Established for Acquired PCD Loans | 0 | 0
Charge-offs | (483) | (584)
Recoveries | 222 | 537
Provision for Credit Losses | 166 | (1,278)
Balance at End of Period | 1,648 | 2,255
Direct |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 528 | 855
Allowance Established for Acquired PCD Loans | 31 | 0
Charge-offs | (1,530) | (302)
Recoveries | 582 | 260
Provision for Credit Losses | 14,839 | (148)
Balance at End of Period | 14,450 | 665
Home equity |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |
Balance at Beginning of Period | 2,029 | 1,848
Allowance Established for Acquired PCD Loans | 723 | 0
Charge-offs | (51) | (82)
Recoveries | 82 | 339
Provision for Credit Losses | 2,344 | 519
Balance at End of Period | $ 5,127 | $ 2,624

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- Definition Financing Receivable, Credit Loss, Expense (Reversal), Excluding Held-to-Maturity Securities + References No definition available. + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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