Fair value portion of amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties.

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This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a recurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

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Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

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Aggregation of the liabilities reported on the balance sheet measured at fair value on a recurring basis by the entity.

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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.

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Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

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Beneficial interest at fair value.

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Liability related to the transfer of home equity conversion mortgage backed security related obligations, which is accounted for as a secured borrowing.

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Liabilities incurred in connection with the Company's servicing assets, measured at fair value.

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Fair Value - Summary of Assets and Liabilities in Each Level of Fair Value Hierarchy (Detail) - USD ($) $ in Thousands	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015
Assets
Residential loans at fair value	$ 11,905,869		$ 12,416,542
Receivables related to Non-Residual Trusts	11,841		15,033
Servicing rights carried at fair value	870,758	$ 930,333	949,593	$ 1,255,351	$ 1,427,331	$ 1,682,016
Derivative instruments	40,522		87,937
Liabilities
Derivative instruments	5,924		11,804
Servicing rights related liabilities	1,314		1,902
Mortgage-backed debt related to Non-Residual Trusts	470,600		514,025
HMBS related obligations	9,986,409		10,509,449
Mortgage Loans Held For Sale
Assets
Residential loans at fair value	1,009,568		1,176,280
Reverse Loans
Assets
Residential loans at fair value	10,440,669		10,742,922
Mortgage Loans Related to Non-Residual Trusts
Assets
Residential loans at fair value	406,006		450,377
Charged-Off Loans
Assets
Residential loans at fair value	49,626		46,963
Recurring Measurement Basis \| Level 2
Assets
Servicing rights carried at fair value	6,650		13,170
Derivative instruments	8,835		34,543
Assets	1,016,315		1,223,993
Liabilities
Derivative instruments	3,749		7,611
Servicing rights related liabilities	1,314		1,902
Liabilities	5,063		9,513
Recurring Measurement Basis \| Level 2 \| Mortgage Loans Held For Sale
Assets
Residential loans at fair value	1,000,830		1,176,280
Recurring Measurement Basis \| Level 3
Assets
Receivables related to Non-Residual Trusts	11,841		15,033
Servicing rights carried at fair value	864,108		936,423
Derivative instruments	31,687		53,394
Assets	11,812,675		12,245,112
Liabilities
Derivative instruments	2,175		4,193
Mortgage-backed debt related to Non-Residual Trusts	470,600		514,025
HMBS related obligations	9,986,409		10,509,449
Liabilities	10,459,184		11,027,667
Recurring Measurement Basis \| Level 3 \| Mortgage Loans Held For Sale
Assets
Residential loans at fair value	8,738		0
Recurring Measurement Basis \| Level 3 \| Reverse Loans
Assets
Residential loans at fair value	10,440,669		10,742,922
Recurring Measurement Basis \| Level 3 \| Mortgage Loans Related to Non-Residual Trusts
Assets
Residential loans at fair value	406,006		450,377
Recurring Measurement Basis \| Level 3 \| Charged-Off Loans
Assets
Residential loans at fair value	$ 49,626		$ 46,963