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Percentage of foreign based employees engaged in supporting loan servicing operations.

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Proceeds from sale of mortgage servicing rights accounted for as financing.

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Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

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Amount of the cumulative effect on retained earnings before related income tax effect.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Threshold period past due for financing receivable to write off as uncollectible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Organization, Business Environment, Basis of Presentation and Significant Accounting Policies - Narrative (Details) $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 18, 2018 USD ($)	Jan. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) Employees	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Jan. 01, 2018 USD ($)
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employees			7,600
Percentage of foreign based employees engaged in supporting loan servicing operations			80.00%
Proceeds from sale of mortgage servicing rights accounted for as financing			$ 54,601	$ 0	$ 0
Current maturities of borrowings in next 12 months			$ 1,000,000
Debt instrument term			364 days
Threshold period past due for financing receivables to be delinquent			89 days
Cumulative-effect adjustment, recognition of excess tax benefits			$ 5,000
Cumulative-effect adjustment, change in accounting for forfeitures			300
Cumulative-effect adjustment, change in accounting for forfeitures, tax			$ 100
Subsequent Event [Member]
Description of Business and Basis of Presentation [Line Items]
cumulative-effect of reduction to retained earnings						$ 5,600
India [Member]
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employees			5,000
Philippines [Member]
Description of Business and Basis of Presentation [Line Items]
Total number of employees \| Employees			600
Maximum [Member]
Description of Business and Basis of Presentation [Line Items]
Maximum percentage till, the company exercise significant influence, but not control over subsidiaries or VIEs			50.00%
NRZ [Member]
Description of Business and Basis of Presentation [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as financing			$ 54,600
NRZ [Member] \| Subsequent Event [Member]
Description of Business and Basis of Presentation [Line Items]
Proceeds from sale of mortgage servicing rights accounted for as financing	$ 279,600	$ 279,600