Segment Reporting - Schedule of Operations and Total Assets of Operating Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Segment Reporting Information [Line Items]
Interest and dividend income	$ 17,167	$ 15,844	$ 36,185	$ 31,021
Interest expense	1,679	2,112	3,359	4,397
Net interest income	15,488	13,732	32,826	26,624
Provision for loan losses	817	586	2,075	1,272
Net interest income after provision for loan losses	14,671	13,146	30,751	25,352
Non-interest income	2,179	8,341	4,405	12,234
Non-interest expense	16,567	13,641	44,641	26,556
Income (loss) before income taxes	283	7,846	(9,485)	11,030
Provision (benefit) for income taxes	(488)	1,914	(3,436)	2,646
Net income (loss)	771	5,932	(6,049)	8,384
Total assets	2,042,283		2,042,283		$ 1,653,510
Ponce Bank
Segment Reporting Information [Line Items]
Interest and dividend income	17,072	15,762	35,960	30,789
Interest expense	1,750	2,080	3,446	4,266
Net interest income	15,322	13,682	32,514	26,523
Provision for loan losses	817	586	2,075	1,272
Net interest income after provision for loan losses	14,505	13,096	30,439	25,251
Non-interest income	1,286	5,967	2,342	7,771
Non-interest expense	13,374	10,609	33,492	20,609
Income (loss) before income taxes	2,417	8,454	(711)	12,413
Provision (benefit) for income taxes	(488)	1,745	(81)	2,850
Net income (loss)	2,905	6,709	(630)	9,563
Total assets	2,016,086		2,016,086		1,630,031
Mortgage World
Segment Reporting Information [Line Items]
Interest and dividend income	95	82	225	232
Interest expense	13	72	81	212
Net interest income	82	10	144	20
Net interest income after provision for loan losses	82	10	144	20
Non-interest income	1,019	2,642	2,315	5,000
Non-interest expense	1,939	2,510	4,162	4,801
Income (loss) before income taxes	(838)	142	(1,703)	219
Provision (benefit) for income taxes		58		98
Net income (loss)	(838)	84	(1,703)	121
Total assets	17,596		17,596		20,096
Ponce Financial Group, Inc.
Segment Reporting Information [Line Items]
Interest and dividend income	84	40	168	81
Net interest income	84	40	168	81
Net interest income after provision for loan losses	84	40	168	81
Non-interest expense	1,380	790	7,239	1,684
Income (loss) before income taxes	(1,296)	(750)	(7,071)	(1,603)
Provision (benefit) for income taxes		111	(3,355)	(302)
Equity in undistributed earnings of Ponce Bank	2,067	6,793	(2,333)	9,684
Net income (loss)	771	5,932	(6,049)	8,383
Total assets	518,082		518,082		312,137
Eliminations
Segment Reporting Information [Line Items]
Interest and dividend income	(84)	(40)	(168)	(81)
Interest expense	(84)	(40)	(168)	(81)
Non-interest income	(126)	(268)	(252)	(537)
Non-interest expense	(126)	(268)	(252)	(538)
Income (loss) before income taxes				1
Equity in undistributed earnings of Ponce Bank	(2,067)	(6,793)	2,333	(9,684)
Net income (loss)	(2,067)	$ (6,793)	2,333	$ (9,683)
Total assets	$ (509,481)		$ (509,481)		$ (308,754)