Operating Segments and Related Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) segment	Mar. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)
Operating Segments and Related Information
Number of reportable segments | segment	3
Number of operating segments | segment	3
Goodwill	$ 311,536		$ 311,536
Total Assets	9,721,405		9,695,729
Net interest income	69,433	$ 68,383
Non-interest income:	27,517	25,945
Non-interest expense:	60,514	57,163
Income before income taxes	19,220	35,054
Net income:	15,364	25,469
Operating segments | Banking
Operating Segments and Related Information
Goodwill	288,436		288,436
Total Assets	9,654,171		9,632,368
Net interest income	71,573	70,638
Non-interest income:	13,168	12,783
Non-interest expense:	48,515	45,171
Income before income taxes	19,010	36,139
Net income:	14,924	26,665
Operating segments | Remittance Processing
Operating Segments and Related Information
Goodwill	8,992		8,992
Total Assets	44,744		44,209
Net interest income	19	18
Non-interest income:	4,069	4,181
Non-interest expense:	2,903	2,764
Income before income taxes	1,185	1,435
Net income:	860	1,025
Operating segments | Wealth Management
Operating Segments and Related Information
Goodwill	14,108		14,108
Total Assets	36,204		32,760
Non-interest income:	11,709	9,133
Non-interest expense:	6,974	5,564
Income before income taxes	4,735	3,569
Net income:	3,599	2,641
Other
Operating Segments and Related Information
Total Assets	(13,714)		$ (13,608)
Net interest income	(2,159)	(2,273)
Non-interest income:	(1,429)	(152)
Non-interest expense:	2,122	3,664
Income before income taxes	(5,710)	(6,089)
Net income:	$ (4,019)	$ (4,862)