Other Real Estate Owned (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Real Estate Properties [Line Items]
Advances from Federal Home Loan Banks			$ 175,200
Mortgage Loans in Process of Foreclosure, Amount	$ 21,100		$ 22,000
Total
Beginning balance	48,030	$ 51,097
Additions	15,426	17,013
Sales	(17,595)	(23,488)
Write-downs/losses	(3,221)	(3,156)
Ending balance	46,253	43,601
Mortgage
Total
Beginning balance	17,200
Ending balance	16,400
2019 Acquisitions
Total
Additions	$ 3,613
HomeBancorp Inc.
Total
Additions		$ 2,135