Segment Reporting - Schedule of Segment Profit and Loss (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Interest and dividend income									$ 67,098	$ 53,339
Interest expense									8,252	11,369	$ 12,358
Net interest income									58,846	41,970
Provision for loan losses									2,717	2,443
Net interest income after provision for loan losses	$ 15,909	$ 14,868	$ 13,146	$ 12,206	$ 11,268	$ 10,231	$ 9,250	$ 8,778	56,129	39,527	37,875
Noninterest income	19,169	3,234	8,341	3,893	4,799	7,252	574	622	34,637	13,247	2,683
Noninterest expense	15,854	14,732	13,641	12,915	13,955	12,327	10,435	10,822	57,142	47,539	46,607
Income (loss) before income taxes	19,224	3,370	7,846	3,184	2,112	5,156	(611)	(1,422)	33,624	5,235	(6,049)
Provision (benefit) for income taxes (Note 9)	4,245	$ 1,318	$ 1,914	$ 732	484	$ 1,147	$ (40)	$ (209)	8,209	1,382	$ (924)
Net income (loss)									25,415	3,853
Total assets	1,653,510				1,355,231				1,653,510	1,355,231
Ponce Bank
Segment Reporting Information [Line Items]
Interest and dividend income									66,647	53,064
Interest expense									8,015	11,357
Net interest income									58,632	41,707
Provision for loan losses									2,717	2,443
Net interest income after provision for loan losses									55,915	39,264
Noninterest income									26,385	7,554
Noninterest expense									45,704	40,510
Income (loss) before income taxes									36,596	6,308
Provision (benefit) for income taxes (Note 9)									8,540	1,520
Net income (loss)									28,056	4,788
Total assets	1,630,031				1,315,287				1,630,031	1,315,287
Mortgage World
Segment Reporting Information [Line Items]
Interest and dividend income									451	275
Interest expense									395	251
Net interest income									56	24
Net interest income after provision for loan losses									56	24
Noninterest income									9,327	6,207
Noninterest expense									9,224	3,877
Income (loss) before income taxes									159	2,354
Provision (benefit) for income taxes (Note 9)									50	521
Net income (loss)									109	1,833
Total assets	20,096				38,397				20,096	38,397
PDL Community Bancorp
Segment Reporting Information [Line Items]
Interest and dividend income									158	239
Net interest income									158	239
Net interest income after provision for loan losses									158	239
Noninterest expense									3,289	3,664
Income (loss) before income taxes									(3,131)	(3,425)
Provision (benefit) for income taxes (Note 9)									(381)	(659)
Equity in undistributed earnings of Ponce Bank and Mortgage World									28,165	6,619
Net income (loss)									25,415	3,853
Total assets	312,137				159,811				312,137	159,811
Eliminations
Segment Reporting Information [Line Items]
Interest and dividend income									(158)	(239)
Interest expense									(158)	(239)
Noninterest income									(1,075)	(514)
Noninterest expense									(1,075)	(512)
Income (loss) before income taxes										(2)
Equity in undistributed earnings of Ponce Bank and Mortgage World									(28,165)	(6,619)
Net income (loss)									(28,165)	(6,621)
Total assets	$ (308,754)				$ (158,264)				$ (308,754)	$ (158,264)