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Loans and Lease Finance Receivables and Allowance for Credit Losses - Schedule of Recorded Investment in Loans Held-for-Investment and Related Allowance for Loan Losses by Loan Type (Detail) $ in Thousands | Jun. 30, 2019 USD ($)
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Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | $ 14,506
Recorded Investment in Loans, Collectively Evaluated for Impairment | 7,525,662
Allowance for Loan Losses, Individually Evaluated for Impairment | 371
Allowance for Loan Losses, Collectively Evaluated for Impairment | 66,761
Commercial and Industrial [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 2,088
Recorded Investment in Loans, Collectively Evaluated for Impairment | 915,865
Allowance for Loan Losses, Individually Evaluated for Impairment | 276
Allowance for Loan Losses, Collectively Evaluated for Impairment | 7,581
Small Business Administration [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 5,632
Recorded Investment in Loans, Collectively Evaluated for Impairment | 321,974
Allowance for Loan Losses, Individually Evaluated for Impairment | 93
Allowance for Loan Losses, Collectively Evaluated for Impairment | 1,026
Commercial Real Estate [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 1,531
Recorded Investment in Loans, Collectively Evaluated for Impairment | 5,415,820
Allowance for Loan Losses, Individually Evaluated for Impairment | 0
Allowance for Loan Losses, Collectively Evaluated for Impairment | 48,287
Construction [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 0
Recorded Investment in Loans, Collectively Evaluated for Impairment | 116,457
Allowance for Loan Losses, Individually Evaluated for Impairment | 0
Allowance for Loan Losses, Collectively Evaluated for Impairment | 871
SFR Mortgage [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 4,858
Recorded Investment in Loans, Collectively Evaluated for Impairment | 273,427
Allowance for Loan Losses, Individually Evaluated for Impairment | 0
Allowance for Loan Losses, Collectively Evaluated for Impairment | 2,323
Dairy & Livestock and Agribusiness [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 0
Recorded Investment in Loans, Collectively Evaluated for Impairment | 301,752
Allowance for Loan Losses, Individually Evaluated for Impairment | 0
Allowance for Loan Losses, Collectively Evaluated for Impairment | 5,341
Municipal Lease Finance Receivables [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 0
Recorded Investment in Loans, Collectively Evaluated for Impairment | 59,985
Allowance for Loan Losses, Individually Evaluated for Impairment | 0
Allowance for Loan Losses, Collectively Evaluated for Impairment | 726
Consumer and Other Loans [Member] |
Financing Receivable, Allowance for Credit Losses [Line Items] |
Recorded Investment in Loans, Individually Evaluated for Impairment | 397
Recorded Investment in Loans, Collectively Evaluated for Impairment | 120,382
Allowance for Loan Losses, Individually Evaluated for Impairment | 2
Allowance for Loan Losses, Collectively Evaluated for Impairment | $ 606

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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