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Activity in Allowance for Losses for Non-Covered Loans and Covered Loans (Detail) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, Individually evaluated for impairment | $ 143 |
Allowance for Loan Losses, Collectively evaluated for impairment | 152,814 | $ 145,196
Allowance for Loan Losses | 180,065 | 178,519
Acquired loans with deteriorated credit quality |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, other | 27,108 | 33,323
Mortgage Receivable |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, Collectively evaluated for impairment | 124,724 | 122,712
Allowance for Loan Losses | 135,837 | 137,295
Mortgage Receivable | Acquired loans with deteriorated credit quality |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, other | 11,113 | 14,583
Other loans |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, Individually evaluated for impairment | 143 |
Allowance for Loan Losses, Collectively evaluated for impairment | 28,090 | 22,484
Allowance for Loan Losses | 44,228 | 41,224
Other loans | Acquired loans with deteriorated credit quality |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |
Allowance for Loan Losses, other | $ 15,995 | $ 18,740

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- Definition Financing Receivable, Allowance For Credit Losses, Allocated + References No definition available. + Details
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- Definition A valuation allowance for financing receivables that are expected to be uncollectible. + 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)(1) -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953423-111524 + Details
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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + 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 + Details
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- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + 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 + Details
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