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- Definition

Amount of expenses related to the generation of investment income.

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-Topic 220
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- Definition

Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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- Definition

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.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of all notes and loans payable (with maturities initially due after one year or beyond the operating cycle if longer).

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Financial Instruments and Fair Value Measurements - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Carrying amount of notes	$ 224,200		$ 297,900
Mortgage indebtedness	185,004		641,082
Interest Rate Cap [Member]
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Investment income	200
Interest Rate Cap [Member] \| Mortgages indebtedness [Member]
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Mortgage indebtedness		$ 1,350,000
Level 3 [Member]
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Approximate fair value of notes	$ 224,900		$ 299,000