Guarantees - Changes from customary respresentations and warranties related to loans sold by BPPR (Details) - Indemnification Guarantee - Banco Popular de Puerto Rico - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Guarantor Obligations [Line Items]
Balance as of beginning of period	$ 3,212	$ 10,837
Provision (reversal) for representations and warranties	(69)	104
Net charge-offs	0	(75)
Balance as of end of period	$ 3,143	$ 10,866

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Amount of valuation and qualifying accounts and reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

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Amount of increase in valuation and qualifying accounts and reserves from charge to accounts other than cost and expense.

+ References

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Amount of decrease in valuation and qualifying accounts and reserves.

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