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Commitments - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Commitments [Line Items]
Minimum rental commitments, 2019	$ 17,808
Minimum rental commitments, 2020	16,674
Minimum rental commitments, 2021	15,787
Minimum rental commitments, 2022	13,971
Operating leases, rent expense	$ 16,000	$ 17,900	$ 20,000
Threshold percentage of outstanding principal balance on maximum claim amount	98.00%
PHH Corporation [Member]
Other Commitments [Line Items]
Minimum rental commitments, 2019	$ 7,700
Minimum rental commitments, 2020	7,100
Minimum rental commitments, 2021	6,900
Minimum rental commitments, 2022	6,600
Floating Rate Reverse Mortgage Loans [Member]
Other Commitments [Line Items]
Additional borrowing capacity to borrowers	1,400,000
Forward Mortgage Loan Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Short-term commitments to lend	132,100
Reverse Mortgage Loan Interest Rate Lock Commitments [Member]
Other Commitments [Line Items]
Short-term commitments to lend	$ 18,100

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Short-term commitments to lend.

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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