Business Combinations - Fair Value of the Assets Purchased, Including Goodwill and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Aug. 21, 2020	Mar. 13, 2020	Dec. 31, 2019
Assets:
Goodwill	$ 221,176			$ 205,286
First Bank of the Palm Beaches
Assets:
Cash			$ 34,749
Investment securities			447
Loans			146,777
Bank premises and equipment			6,086
Core deposit intangibles			819
Goodwill			6,861
Other assets			1,305
Total assets			197,044
Liabilities:
Deposits			173,741
Other liabilities			1,406
Total liabilities			175,147
First Bank of the Palm Beaches | Initially Measured
Assets:
Cash			34,749
Investment securities			447
Loans			146,839
Bank premises and equipment			6,086
Core deposit intangibles			819
Goodwill			6,799
Other assets			1,285
Total assets			197,024
Liabilities:
Deposits			173,741
Other liabilities			1,386
Total liabilities			175,127
First Bank of the Palm Beaches | Measurement Period Adjustments
Assets:
Cash			0
Investment securities			0
Loans			(62)
Bank premises and equipment			0
Core deposit intangibles			0
Goodwill			62
Other assets			20
Total assets			20
Liabilities:
Deposits			0
Other liabilities			20
Total liabilities			$ 20
Fourth Street Banking Company | Initially Measured
Assets:
Cash		$ 38,082
Investment securities		3,498
Loans		303,434
Bank premises and equipment		9,480
Core deposit intangibles		1,310
Goodwill		9,030
Other assets		7,088
Total assets		371,922
Liabilities:
Deposits		329,662
Other liabilities		543
Total liabilities		$ 330,205