The cash inflow from sales of loans that are secured with real estate mortgages and are held with the intention to resell in the near future.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3461-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3536-108585

Name:	us-gaap_ProceedsFromSaleOfMortgageLoansHeldForSale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Mortgage Loans - Narrative (Details) - Residential mortgage - Residential portfolio segment - Loans receivable $ in Millions	Oct. 07, 2019 USD ($) loan	Sep. 30, 2019 loan	Dec. 31, 2018 loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of remaining mortgage loans		52	74
Subsequent Event
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of mortgage loans sold	47
Aggregate sales price of mortgage loans \| $	$ 3.5