Business Combinations - Fair Value of the Assets Purchased, Including Goodwill, and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Oct. 19, 2018	Dec. 31, 2017	Nov. 03, 2017	Oct. 20, 2017	Apr. 07, 2017	Dec. 31, 2016
Assets:
Goodwill	$ 205,286	$ 204,753		$ 147,578				$ 64,649
Gulf Shore Banc shares Inc
Assets:
Cash							$ 38,267
Time deposits with other banks							17,273
Investment securities							316
Loans, net							250,876
Fixed assets							1,307
Other real estate owned							13
Core deposit intangibles							3,927
Goodwill							37,098
Other assets							8,572
Total assets							357,649
Liabilities:
Deposits							285,350
Other liabilities							1,382
Total liabilities							$ 286,732
NorthStar Bank | Measurement Period Adjustments
Assets:
Cash						$ 0
Investment securities						0
Loans, net						0
Fixed assets						0
Core deposit intangibles						0
Goodwill						(99)
Other assets						99
Total assets						0
Liabilities:
Deposits						0
Other liabilities						0
Total liabilities						0
Palm Beach Community Bank | Measurement Period Adjustments
Assets:
Cash					$ 0
Investment securities					0
Loans, net					(1,772)
Fixed assets					0
Core deposit intangibles					0
Goodwill					1,076
Other assets					696
Total assets					0
Liabilities:
Deposits					0
Other liabilities					0
Total liabilities					0
First Green Bancorp, Inc.
Assets:
Goodwill			$ 56,700
First Green Bancorp, Inc. | Measurement Period Adjustments
Assets:
Cash			0
Investment securities			0
Loans, net			0
Fixed assets			0
Other real estate owned			0
Core deposit intangibles			(676)
Goodwill			533
Other assets			178
Total assets			35
Liabilities:
Deposits			0
Other liabilities			35
Total liabilities			35
As Adjusted | NorthStar Bank
Assets:
Cash						5,485
Investment securities						56,123
Loans, net						136,832
Fixed assets						2,637
Core deposit intangibles						1,275
Goodwill						12,305
Other assets						1,621
Total assets						216,278
Liabilities:
Deposits						182,443
Other liabilities						980
Total liabilities						183,423
As Adjusted | Palm Beach Community Bank
Assets:
Cash					9,301
Investment securities					22,098
Loans, net					270,318
Fixed assets					7,641
Core deposit intangibles					2,523
Goodwill					34,504
Other assets					10,605
Total assets					356,990
Liabilities:
Deposits					268,633
Other liabilities					16,351
Total liabilities					284,984
As Adjusted | First Green Bancorp, Inc.
Assets:
Cash			29,434
Investment securities			32,145
Loans, net			631,497
Fixed assets			16,828
Other real estate owned			410
Core deposit intangibles			9,494
Goodwill			56,731
Other assets			40,847
Total assets			817,386
Liabilities:
Deposits			624,289
Other liabilities			79,053
Total liabilities			703,342
Initially Reported | NorthStar Bank
Assets:
Cash						5,485
Investment securities						56,123
Loans, net						136,832
Fixed assets						2,637
Core deposit intangibles						1,275
Goodwill						12,404
Other assets						1,522
Total assets						216,278
Liabilities:
Deposits						182,443
Other liabilities						980
Total liabilities						$ 183,423
Initially Reported | Palm Beach Community Bank
Assets:
Cash					9,301
Investment securities					22,098
Loans, net					272,090
Fixed assets					7,641
Core deposit intangibles					2,523
Goodwill					33,428
Other assets					9,909
Total assets					356,990
Liabilities:
Deposits					268,633
Other liabilities					16,351
Total liabilities					$ 284,984
Initially Reported | First Green Bancorp, Inc.
Assets:
Cash			29,434
Investment securities			32,145
Loans, net			631,497
Fixed assets			16,828
Other real estate owned			410
Core deposit intangibles			10,170
Goodwill			56,198
Other assets			40,669
Total assets			817,351
Liabilities:
Deposits			624,289
Other liabilities			79,018
Total liabilities			$ 703,307