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Quality of Non-Covered Loans (Excluding PCI Loans) (Parenthetical) (Detail) - Non-Covered Loans - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | $ 66,852 |  | $ 53,430
Financing Receivable, 30-89 Days Past Due |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 10,383 | [1] | 6,605
Financing Receivable, 30-89 Days Past Due | Purchased Credit-Impaired Loans |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | 6,000 |  |
Loans 90 Days Or More Past Due | Purchased Credit-Impaired Loans |  |  |
Financing Receivable, Recorded Investment, Past Due [Line Items] |  |  |
Total Past Due | $ 869,000 |  | $ 969,000
[1] | Excludes $6,000 and $869,000 of non-covered PCI loans that were 30 to 89 days past due and 90 days or more past due, respectively.

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- Definition Recorded Investment in financing receivables that are past due at the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7A -URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524 + Details
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