Supplemental Disclosures of Cash Flow Information - Summary of Supplemental Disclosures of Cash Flow Information (Detail) - USD ($) $ in Thousands	1 Months Ended	11 Months Ended	12 Months Ended
Feb. 09, 2018	Dec. 31, 2018	Dec. 31, 2017
Supplemental Disclosure of Cash Flow Information
Cash paid for interest	$ 17,734	$ 198,603	$ 212,021
Cash received for taxes	(244)	(910)	(72,882)
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Real estate owned acquired through foreclosure	14,045	111,207	167,835
Residential loans originated to finance the sale of real estate owned	1,701	12,885	10,799
Servicing Rights Capitalized Upon Sales of Loans [Member]
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Assets acquired in noncash acquisition	14,493	166,203	148,227
Residential Loans Related To Non-Residual Trusts [Member]
Supplemental Disclosure of Non-Cash Investing and Financing Activities
Assets acquired in noncash acquisition	$ 0	$ 0	$ 25,061

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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Mortgage loan related to property sales in noncash investing and financing activities.

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The value of an asset or business acquired in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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Value transferred from mortgage loans to real estate owned (REO) in noncash transactions.

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