Unpaid principal amount of loans repurchased.

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Reflects principally the unearned financing income associated with finance lease receivables

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Amount of financing receivable 90 days or more past due and still accruing.

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Amount of financing receivable not past due.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Amount, after valuation allowance, of financing receivable held for sale and not part of disposal group. Excludes loan covered under loss sharing agreement and loan classified as investment in debt security.

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The sum of the carrying amounts, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of related debt obligations, primarily secured borrowings and repurchase agreements, and for which the transferees are not permitted to sell or re-pledge them to an unrelated party.

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The carrying amount, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of FHLB debt obligations, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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The carrying amount, as of the date of the latest financial statement presented, of loans receivable which are owned but transferred to serve as collateral for the payment of other debt obligations, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

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Loans - Loans HIP in past due status, non-performing status and accruing loans past-due 90 days or more by loan class (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Jan. 02, 2020
Accounts, Notes, Loans and Financing Receivable
Unearned Income	$ 212,992		$ 203,234
Loans held in portfolio	29,131,628		29,385,196
Loans held-for-sale, at lower of cost or fair value	84,214		99,455
Pledged Financial Instruments, Not Separately Reported, Loans Receivable Pledged as Collateral	6,300,000		6,500,000
Loans-held-in portfolio served as collateral to secure credit facilities authorized with the FHLB	4,000,000		4,100,000
Recorded investment current	27,128,458		27,115,643
Mortgage loans related to buy-back option program	29,344,620		29,588,430
Mortgages
Accounts, Notes, Loans and Financing Receivable
Loans held in portfolio	7,808,852		7,890,680
Recorded investment current	6,307,630		6,114,778
Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	832,756		1,028,064
Past Due 90 Days or More \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	821,154		1,014,481
GNMA
Accounts, Notes, Loans and Financing Receivable
Repurchased loans	44,000	$ 22,000
Buy back option program
Accounts, Notes, Loans and Financing Receivable
Mortgage loans related to buy-back option program	29,000		57,000
FRB Advances
Accounts, Notes, Loans and Financing Receivable
Loans served as collateral to secure debt obligations	2,300,000		2,400,000
Puerto Rico
Accounts, Notes, Loans and Financing Receivable
Loans held in portfolio	21,334,265		21,573,280
Recorded investment current	19,444,218		19,426,598
Puerto Rico \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Loans held in portfolio	6,675,979		6,770,143
Recorded investment current	5,204,344		5,057,991
Puerto Rico \| Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	832,747		1,028,061
Puerto Rico \| Past Due 90 Days or More \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	821,154		1,014,481
Puerto Rico \| Buy back option program \| GNMA \| Past Due 90 Days or More \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing			57,000
Popular U.S.
Accounts, Notes, Loans and Financing Receivable
Loans held in portfolio	7,797,363		7,811,916
Recorded investment current	7,684,240		7,689,045
Popular U.S. \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Loans held in portfolio	1,132,873		1,120,537
Recorded investment current	1,103,286		1,056,787
Popular U.S. \| Past Due 90 Days or More
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	9		3
Popular U.S. \| Past Due 90 Days or More \| Mortgages
Accounts, Notes, Loans and Financing Receivable
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing	$ 0		$ 0
ASC Subtopic 310-30
Accounts, Notes, Loans and Financing Receivable
Recorded investment current				$ 134,000
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing				144,000
ASC Subtopic 310-30 \| Puerto Rico
Accounts, Notes, Loans and Financing Receivable
Recorded investment current				134,000
Financing Receivable Recorded Investment 90 Days Past Due And Still Accruing				$ 125,000