Parent-only Financial Information - Financial Condition (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Cash and due from banks	$ 100,899	$ 102,484
Securities available for sale, at fair value	964,534	1,074,395
Other assets	82,149	76,682
Total assets	8,911,657	8,523,377
Liabilities and Stockholders’ Equity
Other liabilities	7,715,592	7,379,278
Total stockholders’ equity	1,196,065	1,144,099	$ 1,010,753	$ 981,246
Total liabilities and stockholders’ equity	8,911,657	8,523,377
Provident Financial Services, Inc. [Member]
Assets
Cash and due from banks	22,280	10,475
Securities available for sale, at fair value	519	524
Investment in subsidiary	1,126,616	1,077,624
Due from subsidiary—SAP	(2,539)	2,794
ESOP loan	49,872	53,438
Other assets	52	34
Total assets	1,196,800	1,144,889
Liabilities and Stockholders’ Equity
Other liabilities	735	790
Total stockholders’ equity	1,196,065	1,144,099
Total liabilities and stockholders’ equity	$ 1,196,800	$ 1,144,889