Loans and Leases - Lease Payments Receivables (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Within 1 year	$ 56,872	$ 54,093
After 1 year through 2 years	41,931	40,250
After 2 years through 3 years	28,340	25,940
After 3 years through 4 years	16,369	13,914
After 4 years through 5 years	6,753	4,853
Thereafter	444	219
Total future minimum lease payments receivable	150,709	139,269
Less: Unearned income	(15,970)	(13,829)
Total lease financing receivables, net of unearned income	$ 134,739	$ 125,440