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Allowance for Loan Losses - Summary of Allowance for Loan Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 52,213 | $ 48,814 | $ 48,147 | $ 47,911
Charge-offs | (1,500) | (5,641) | (8,623) | (8,847)
Recoveries | 564 | 3,528 | 1,890 | 4,370
Net (Charge-offs)/ Recoveries | (936) | (2,113) | (6,733) | (4,477)
Provision for loan losses | 2,516 | 3,206 | 12,379 | 6,473
Balance at End of Period | 53,793 | 49,907 | 53,793 | 49,907
Commercial and Industrial |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 14,771 | 13,308 | 10,853 | 13,668
Charge-offs | (414) | (1,121) | (3,244) | (2,819)
Recoveries | 169 | 272 | 589 | 475
Net (Charge-offs)/ Recoveries | (245) | (849) | (2,655) | (2,344)
Provision for loan losses | (2,232) | 12 | 4,096 | 1,147
Balance at End of Period | 12,294 | 12,471 | 12,294 | 12,471
Commercial Real Estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 15,978 | 19,018 | 15,043 | 20,164
Charge-offs | (93) | (2,361) | (1,808) | (2,738)
Recoveries | 264 | 2,896 | 662 | 3,072
Net (Charge-offs)/ Recoveries | 171 | 535 | (1,146) | 334
Provision for loan losses | 4,244 | (2,575) | 6,496 | (3,520)
Balance at End of Period | 20,393 | 16,978 | 20,393 | 16,978
Commercial Construction |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 11,701 | 7,671 | 12,625 | 6,093
Charge-offs | (163) | (1,247) | (1,108) | (1,247)
Recoveries | 17 | 129 | 20 | 132
Net (Charge-offs)/ Recoveries | (146) | (1,118) | (1,088) | (1,115)
Provision for loan losses | 1,356 | 4,983 | 1,374 | 6,558
Balance at End of Period | 12,911 | 11,536 | 12,911 | 11,536
Consumer Real Estate |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 8,418 | 7,027 | 8,400 | 6,333
Charge-offs | (369) | (445) | (891) | (997)
Recoveries | 44 | 132 | 342 | 379
Net (Charge-offs)/ Recoveries | (325) | (313) | (549) | (618)
Provision for loan losses | (1,760) | 302 | (1,518) | 1,301
Balance at End of Period | 6,333 | 7,016 | 6,333 | 7,016
Other Consumer |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 1,345 | 1,790 | 1,226 | 1,653
Charge-offs | (461) | (467) | (1,572) | (1,046)
Recoveries | 70 | 99 | 277 | 312
Net (Charge-offs)/ Recoveries | (391) | (368) | (1,295) | (734)
Provision for loan losses | 908 | 484 | 1,931 | 987
Balance at End of Period | $ 1,862 | $ 1,906 | $ 1,862 | $ 1,906

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Amount, after recoveries, of loans and leases that have been written-off. + References No definition available. + Details
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- 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74567-122707 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544 + Details
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