Fair Value of Assets and Liabilities - Summary of Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Assets
Impaired loans	$ 26,558	$ 338,867
Fair Value, Measurements, Nonrecurring [Member]
Assets
Impaired loans	48,702
Loan collateral in process of foreclosure	59,761
Other receivables	5,500
Total	113,963
Fair Value, Measurements, Nonrecurring [Member] \| Level 3 [Member]
Assets
Impaired loans	48,702
Loan collateral in process of foreclosure	59,761
Other receivables	5,500
Total	$ 113,963

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

+ References

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Recorded investment of consumer mortgage loan receivables secured by residential real estate properties for which formal foreclosure proceedings are in process.

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Fair value portion of receivables, including, but not limited to, trade account receivables, note receivables, and loan receivables.

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-Paragraph 1
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