Loans and Leases - Allowance for Loan and Lease Losses (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2018 |
Sep. 30, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Sep. 30, 2017 |
Jun. 30, 2017 |
Mar. 31, 2017 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Allowance for loan losses on loans and leases: | |||||||||||
| Balance at beginning of period | $ 31,043 | $ 31,043 | |||||||||
| Loan and lease loss provision (income) | $ 3,041 | $ 200 | $ 100 | 649 | $ 220 | $ 269 | $ 422 | $ (80) | 3,990 | $ 831 | $ (4,339) |
| Balance at end of period | 31,974 | 31,043 | 31,974 | 31,043 | |||||||
| Allowance for loan losses [Member] | |||||||||||
| Allowance for loan losses on loans and leases: | |||||||||||
| Balance at beginning of period | $ 31,043 | $ 32,429 | 31,043 | 32,429 | 42,935 | ||||||
| Charge-offs | (7,310) | (5,899) | (8,869) | ||||||||
| Recoveries on loans and leases previously charged off | 4,251 | 3,682 | 2,702 | ||||||||
| Net loan and lease charge-offs | (3,059) | (2,217) | (6,167) | ||||||||
| Loan and lease loss provision (income) | 3,990 | 831 | (4,339) | ||||||||
| Balance at end of period | $ 31,974 | $ 31,043 | $ 31,974 | $ 31,043 | $ 32,429 | ||||||
| X | ||||||||||
- Definition Provision (Negative Provision) For Loan, Lease, And Other Losses No definition available.
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| X | ||||||||||
- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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| X | ||||||||||
- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount, after recoveries, of loans and leases that have been written-off. No definition available.
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| X | ||||||||||
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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