Loans Receivable - Components of the Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Components of the Allowance For Loan Losses:
Beginning Balance	$ 12,363	$ 10,699	$ 12,970	$ 11,454
Provision for Loan Losses	4,968	5,048	9,223	9,540
Charge-offs	(5,158)	(4,592)	(10,642)	(10,210)
Recoveries	610	431	1,232	802
Ending Balance	$ 12,783	$ 11,586	$ 12,783	$ 11,586