Loans and Leases - Net Investments in Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	$ 160,685	$ 130,811
Unearned lease income	(22,393)	(19,861)
Initial direct costs and deferred fees	6,244	4,451
Total leases	144,536	115,401
Originated
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	135,313	75,592
Unearned lease income	(19,388)	(10,338)
Initial direct costs and deferred fees	5,642	2,781
Total leases	121,567	68,035
Acquired
Loans and Leases Receivable Disclosure [Line Items]
Minimum lease payments receivable	25,372	55,219
Unearned lease income	(3,005)	(9,523)
Initial direct costs and deferred fees	602	1,670
Total leases	$ 22,969	$ 47,366