Acquisition - Summary of Consideration Paid (Details) - USD ($) $ / shares in Units, $ in Thousands	Jul. 01, 2016	Jun. 30, 2016
Purchase price consideration in common stock:
Univest closing stock price at June 30, 2016		$ 21.02
Fox Chase Bank [Member]
Purchase price consideration in common stock:
Fox Chase common shares outstanding	11,754,852
Fox Chase common shares settled for stock	7,047,096
Exchange ratio	97.31%
Univest shares issued	6,857,529
Univest closing stock price at June 30, 2016		$ 21.02
Purchase price assigned to Fox Chase common shares exchanged for Univest stock	$ 144,146
Fox Chase common shares settled for cash	4,707,756
Purchase price for shares exchanged for cash	$ 21.00
Purchase price assigned to Fox Chase common shares exchanged for cash	$ 98,863
Purchase price assigned to cash in lieu of fractional shares	11
Purchase price assigned to Fox Chase options settled for cash	4,255
Purchase price consideration - ESOP and Equity Incentive Plan	(5,041)
Total purchase price	242,234
Fair value of assets acquired:
Cash and due from banks	3,253
Interest-earning deposits with other banks	15,629
Investment securities available-for-sale	230,682
Loans held for investment	776,214
Premises and equipment, net	13,146
Other real estate owned	2,510
Core deposit intangible	5,268
Bank owned life insurance	26,119
Accrued interest receivable and other assets	20,827
Total identifiable assets	1,093,648
Fair value of liabilities assumed:
Deposits - noninterest bearing	35,285
Deposits - interest bearing	702,978
Short-term borrowings	48,500
Long-term debt	123,448
Accrued interest payable and other liabilities	1,105
Total liabilities	911,316
Identifiable net assets	182,332
Goodwill resulting from merger	$ 59,902