Condensed Consolidating Statement of Condition (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Assets:
Cash and due from banks	$ 435,080		$ 388,311
Money market investments	9,625,278		3,262,286
Trading account debt securities, at fair value	33,560		40,321
Debt Securities Available for Sale, at Fair Value	20,763,453		17,648,473
Debt securities held-to-maturity	95,429		97,662
Less - Allowance for credit losses	12,735		0
Debt securities held-to-maturity, net	82,694		97,662
Equity securities	166,476		159,887
Investment in subsidiaries	0		0
Loans held-for-sale, at lower of cost or fair value	68,725		59,203
Loans held-in-portfolio:
Loans held-in-portfolio	29,250,076		27,587,856
Less - Unearned income	179,523		180,983
Allowance for credit losses	918,434	$ 919,716	477,708	$ 543,666	$ 550,628	$ 569,348
Total loans held-in-portfolio, net	28,152,119		26,929,165
Premises and equipment, net	513,680		556,650
Other real estate	113,940		122,072
Accrued income receivable	220,126		180,871
Mortgage servicing assets, at fair value	141,144		150,906	153,021		169,777
Other assets	1,833,444		1,819,615
Goodwill	671,122		671,122
Other intangible assets	24,511		28,780
Total assets	62,845,352		52,115,324	50,617,221
Deposits:
Non-interest bearing	12,520,510		9,160,173
Interest bearing	41,323,790		34,598,433
Total deposits	53,844,300		43,758,606
Assets sold under agreements to repurchase	153,065		193,378
Notes payable	1,186,274		1,101,608
Other liabilities	1,881,548		1,044,953
Total liabilities	57,065,187		46,098,545
Stockholders' equity:
Preferred stock	22,143		50,160
Common stock	1,044		1,044
Surplus	4,520,333		4,447,412
Retained Earnings (Accumulated Deficit)	2,033,782		2,147,915
Treasury stock, at cost	(1,016,486)		(459,814)
Accumulated other comprehensive (loss) income, net of tax	219,349		(169,938)	(191,213)
Total stockholders' equity	5,780,165	$ 5,669,605	6,016,779	$ 5,719,834	$ 5,440,060	$ 5,435,057
Total liabilities and stockholders' equity	62,845,352		52,115,324
Elimination
Assets:
Cash and due from banks	(67,604)		(56,008)
Money market investments	(190,079)		(237,029)
Trading account debt securities, at fair value	0		0
Debt Securities Available for Sale, at Fair Value	0		0
Debt securities held-to-maturity	0		0
Less - Allowance for credit losses	0
Debt securities held-to-maturity, net	0
Equity securities	(128)		(199)
Investment in subsidiaries	(7,792,355)		(8,049,648)
Loans held-for-sale, at lower of cost or fair value	0		0
Loans held-in-portfolio:
Loans held-in-portfolio	5,955		5,955
Less - Unearned income	0		0
Allowance for credit losses	0		0
Total loans held-in-portfolio, net	5,955		5,955
Premises and equipment, net	0		0
Other real estate	0		0
Accrued income receivable	(29)		(249)
Mortgage servicing assets, at fair value	0		0
Other assets	(31,400)		(18,383)
Goodwill	(1)		(1)
Other intangible assets	0		0
Total assets	(8,075,641)		(8,355,562)
Deposits:
Non-interest bearing	(67,604)		(56,008)
Interest bearing	(190,079)		(237,029)
Total deposits	(257,683)		(293,037)
Assets sold under agreements to repurchase	0		0
Notes payable	0		0
Other liabilities	(31,277)		(18,708)
Total liabilities	(288,960)		(311,745)
Stockholders' equity:
Preferred stock	0		0
Common stock	(56,309)		(56,309)
Surplus	(10,017,200)		(10,011,852)
Retained Earnings (Accumulated Deficit)	2,550,545		1,861,504
Treasury stock, at cost	(111)		(110)
Accumulated other comprehensive (loss) income, net of tax	(263,606)		162,950
Total stockholders' equity	(7,786,681)		(8,043,817)
Total liabilities and stockholders' equity	(8,075,641)		(8,355,562)
Popular, Inc. Holding Co.
Assets:
Cash and due from banks	67,604		55,956
Money market investments	177,618		221,598
Trading account debt securities, at fair value	0		0
Debt Securities Available for Sale, at Fair Value	0		0
Debt securities held-to-maturity	8,726		8,726
Less - Allowance for credit losses	0
Debt securities held-to-maturity, net	8,726
Equity securities	12,913		10,744
Investment in subsidiaries	6,024,065		6,243,065
Loans held-for-sale, at lower of cost or fair value	0		0
Loans held-in-portfolio:
Loans held-in-portfolio	31,753		32,027
Less - Unearned income	0		0
Allowance for credit losses	353		410
Total loans held-in-portfolio, net	31,400		31,617
Premises and equipment, net	5,073		3,893
Other real estate	146		146
Accrued income receivable	170		382
Mortgage servicing assets, at fair value	0		0
Other assets	110,536		93,835
Goodwill	0		0
Other intangible assets	6,414		6,463
Total assets	6,444,665		6,676,425
Deposits:
Non-interest bearing	0		0
Interest bearing	0		0
Total deposits	0		0
Assets sold under agreements to repurchase	0		0
Notes payable	586,752		586,119
Other liabilities	77,816		73,596
Total liabilities	664,568		659,715
Stockholders' equity:
Preferred stock	22,143		50,160
Common stock	1,044		1,044
Surplus	4,511,627		4,438,706
Retained Earnings (Accumulated Deficit)	2,042,309		2,156,442
Treasury stock, at cost	(1,016,375)		(459,704)
Accumulated other comprehensive (loss) income, net of tax	219,349		(169,938)
Total stockholders' equity	5,780,097		6,016,710
Total liabilities and stockholders' equity	6,444,665		6,676,425
PNA Holding Co.
Assets:
Cash and due from banks	0		0
Money market investments	13,079		16,029
Trading account debt securities, at fair value	0		0
Debt Securities Available for Sale, at Fair Value	0		0
Debt securities held-to-maturity	2,835		2,835
Less - Allowance for credit losses	0
Debt securities held-to-maturity, net	2,835
Equity securities	20		20
Investment in subsidiaries	1,768,290		1,806,583
Loans held-for-sale, at lower of cost or fair value	0		0
Loans held-in-portfolio:
Loans held-in-portfolio	0		0
Less - Unearned income	0		0
Allowance for credit losses	0		0
Total loans held-in-portfolio, net	0		0
Premises and equipment, net	0		0
Other real estate	0		0
Accrued income receivable	76		108
Mortgage servicing assets, at fair value	0		0
Other assets	21,919		21,324
Goodwill	0		0
Other intangible assets	0		0
Total assets	1,806,219		1,846,899
Deposits:
Non-interest bearing	0		0
Interest bearing	0		0
Total deposits	0		0
Assets sold under agreements to repurchase	0		0
Notes payable	94,104		94,090
Other liabilities	3,203		3,200
Total liabilities	97,307		97,290
Stockholders' equity:
Preferred stock	0		0
Common stock	2		2
Surplus	4,173,087		4,173,169
Retained Earnings (Accumulated Deficit)	(2,500,586)		(2,425,429)
Treasury stock, at cost	0		0
Accumulated other comprehensive (loss) income, net of tax	36,409		1,867
Total stockholders' equity	1,708,912		1,749,609
Total liabilities and stockholders' equity	1,806,219		1,846,899
All other subsidiaries and eliminations
Assets:
Cash and due from banks	435,080		388,363
Money market investments	9,624,660		3,261,688
Trading account debt securities, at fair value	33,560		40,321
Debt Securities Available for Sale, at Fair Value	20,763,453		17,648,473
Debt securities held-to-maturity	83,868		86,101
Less - Allowance for credit losses	12,735
Debt securities held-to-maturity, net	71,133
Equity securities	153,671		149,322
Investment in subsidiaries	0		0
Loans held-for-sale, at lower of cost or fair value	68,725		59,203
Loans held-in-portfolio:
Loans held-in-portfolio	29,212,368		27,549,874
Less - Unearned income	179,523		180,983
Allowance for credit losses	918,081		477,298
Total loans held-in-portfolio, net	28,114,764		26,891,593
Premises and equipment, net	508,607		552,757
Other real estate	113,794		121,926
Accrued income receivable	219,909		180,630
Mortgage servicing assets, at fair value	141,144		150,906
Other assets	1,732,389		1,722,839
Goodwill	671,123		671,123
Other intangible assets	18,097		22,317
Total assets	62,670,109		51,947,562
Deposits:
Non-interest bearing	12,588,114		9,216,181
Interest bearing	41,513,869		34,835,462
Total deposits	54,101,983		44,051,643
Assets sold under agreements to repurchase	153,065		193,378
Notes payable	505,418		421,399
Other liabilities	1,831,806		986,865
Total liabilities	56,592,272		45,653,285
Stockholders' equity:
Preferred stock	0		0
Common stock	56,307		56,307
Surplus	5,852,819		5,847,389
Retained Earnings (Accumulated Deficit)	(58,486)		555,398
Treasury stock, at cost	0		0
Accumulated other comprehensive (loss) income, net of tax	227,197		(164,817)
Total stockholders' equity	6,077,837		6,294,277
Total liabilities and stockholders' equity	$ 62,670,109		$ 51,947,562