Operating Segments and Related Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) segment	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Operating Segments and Related Information
Number of reportable segments | segment			3
Goodwill	$ 102,814		$ 102,814		$ 102,814
Total Assets	5,531,367		5,531,367		5,425,170
Net interest income:	42,366	$ 37,952	84,379	$ 65,894
Non-interest income:	20,062	18,577	40,076	35,423
Non-interest expense:	36,768	36,348	74,387	64,036
Income before income taxes:	25,160	19,081	49,068	35,181
Net income:	16,479	12,383	31,649	22,817
Operating segments | Banking
Operating Segments and Related Information
Goodwill	82,128		82,128		82,128
Total Assets	5,475,118		5,475,118		5,369,669
Net interest income:	43,365	38,349	85,907	66,561
Non-interest income:	10,758	10,930	21,212	18,720
Non-interest expense:	29,331	28,963	58,621	48,939
Income before income taxes:	24,292	19,215	47,498	34,241
Net income:	15,855	12,423	30,604	22,126
Operating segments | Remittance Processing
Operating Segments and Related Information
Goodwill	8,992		8,992		8,992
Total Assets	33,256		33,256		32,379
Net interest income:	15	14	29	28
Non-interest income:	3,005	2,896	6,029	5,936
Non-interest expense:	2,174	2,157	4,286	4,447
Income before income taxes:	847	753	1,773	1,517
Net income:	508	451	1,062	908
Operating segments | Wealth Management
Operating Segments and Related Information
Goodwill	11,694		11,694		11,694
Total Assets	29,695		29,695		28,351
Net interest income:	90	64	146	130
Non-interest income:	6,691	5,807	13,708	12,068
Non-interest expense:	3,980	3,704	7,944	7,809
Income before income taxes:	2,801	2,168	5,910	4,390
Net income:	1,675	1,296	3,523	2,618
Other
Operating Segments and Related Information
Total Assets	(6,702)		(6,702)		$ (5,229)
Net interest income:	(1,104)	(475)	(1,703)	(825)
Non-interest income:	(392)	(1,056)	(873)	(1,301)
Non-interest expense:	1,283	1,524	3,536	2,841
Income before income taxes:	(2,780)	(3,055)	(6,113)	(4,967)
Net income:	$ (1,559)	$ (1,787)	$ (3,540)	$ (2,835)