Loans and Leases - Net Investments in Leases (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	$ 148,374	$ 130,811
Unearned lease income	(21,269)	(19,861)
Initial direct costs and deferred fees	5,544	4,451
Total Leases	132,649	115,401
Originated
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	108,718	75,592
Unearned lease income	(15,735)	(10,338)
Initial direct costs and deferred fees	4,523	2,781
Total Leases	97,506	68,035
Acquired
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	39,656	55,219
Unearned lease income	(5,534)	(9,523)
Initial direct costs and deferred fees	1,021	1,670
Total Leases	$ 35,143	$ 47,366