Deposits - Schedule of Deposit Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Banking and Thrift [Abstract]
One year or less	$ 1,293,613	$ 1,107,667
After one year to two years	548,995	326,800
After two years to three years	142,458	230,468
After three years to four years	11,362	24,939
After four years	16,717	10,442
Total term certificate accounts	$ 2,013,145	$ 1,700,316