Operating Segments and Related Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) segment	Mar. 31, 2016 USD ($)	Dec. 31, 2016 USD ($)
Operating Segments and Related Information
Number of reportable segments | segment	3
Goodwill	$ 102,814		$ 102,814
Total Assets	5,438,935		5,425,170
Net interest income:	42,013	$ 27,942
Non-interest income:	20,014	16,846
Non-interest expense:	37,619	27,688
Income before income taxes:	23,908	16,100
Net income:	15,170	10,434
Operating segments | Banking
Operating Segments and Related Information
Goodwill	82,128		82,128
Total Assets	5,386,689		5,369,669
Net interest income:	42,542	28,212
Non-interest income:	10,454	7,790
Non-interest expense:	29,290	19,976
Income before income taxes:	23,206	15,026
Net income:	14,749	9,703
Operating segments | Remittance Processing
Operating Segments and Related Information
Goodwill	8,992		8,992
Total Assets	32,758		32,379
Net interest income:	14	14
Non-interest income:	3,024	3,040
Non-interest expense:	2,112	2,290
Income before income taxes:	926	764
Net income:	554	457
Operating segments | Wealth Management
Operating Segments and Related Information
Goodwill	11,694		11,694
Total Assets	28,626		28,351
Net interest income:	56	66
Non-interest income:	7,017	6,261
Non-interest expense:	3,964	4,105
Income before income taxes:	3,109	2,222
Net income:	1,848	1,322
Other
Operating Segments and Related Information
Total Assets	(9,138)		$ (5,229)
Net interest income:	(599)	(350)
Non-interest income:	(481)	(245)
Non-interest expense:	2,253	1,317
Income before income taxes:	(3,333)	(1,912)
Net income:	$ (1,981)	$ (1,048)