Loan and Lease Financings (Tables)

12 Months Ended

Dec. 31, 2016

Receivables [Abstract]

Summary of the gross investment in lease financing and the components of the investment in lease financing

The following table shows the summary of the gross investment in lease financing and the components of the investment in lease financing at December 31, 2016 and 2015.

(Dollars in thousands)	2016			2015
Direct finance leases:
Rentals receivable	$	218,543		$	206,426
Estimated residual value of leased assets	21,992			15,756
Gross investment in lease financing	240,535			222,182
Unearned income	(35,751		)	(32,499		)
Net investment in lease financing	$	204,784		$	189,683

Schedule of credit quality grades of the recorded investment in loans and leases, segregated by class

The following table shows the credit quality grades of the recorded investment in loans and leases, segregated by class.

	Credit Quality Grades
(Dollars in thousands)	1-6		7-12		Total
December 31, 2016
Commercial and agricultural	$	784,811	$	27,453	$	812,264
Auto and light truck	407,931		3,833		411,764
Medium and heavy duty truck	291,558		3,232		294,790
Aircraft	772,802		29,612		802,414
Construction equipment	486,923		9,002		495,925
Commercial real estate	707,252		11,918		719,170
Total	$	3,451,277	$	85,050	$	3,536,327
December 31, 2015
Commercial and agricultural	$	710,030	$	34,719	$	744,749
Auto and light truck	413,836		11,400		425,236
Medium and heavy duty truck	275,367		2,887		278,254
Aircraft	750,264		27,748		778,012
Construction equipment	448,683		6,882		455,565
Commercial real estate	680,304		19,964		700,268
Total	$	3,278,484	$	103,600	$	3,382,084

Schedule of recorded investment in residential real estate and consumer loans by performing or nonperforming status

The following table shows the recorded investment in residential real estate and consumer loans by performing or nonperforming status. Nonperforming loans are those loans which are on nonaccrual status or are 90 days or more past due.

(Dollars in thousands)	Performing		Nonperforming		Total
December 31, 2016
Residential real estate and home equity	$	518,896	$	3,035	$	521,931
Consumer	129,585		228		129,813
Total	$	648,481	$	3,263	$	651,744
December 31, 2015
Residential real estate and home equity	$	488,436	$	2,032	$	490,468
Consumer	121,980		160		122,140
Total	$	610,416	$	2,192	$	612,608

Schedule of recorded investment of loans and leases, segregated by class, with delinquency aging and nonaccrual status

The following table shows the recorded investment of loans and leases, segregated by class, with delinquency aging and nonaccrual status.

(Dollars in thousands)	Current		30-59 Days Past Due		60-89 Days Past Due		90 Days or More Past Due and Accruing		Total Accruing Loans		Nonaccrual		Total Financing Receivables
December 31, 2016
Commercial and agricultural	$	808,283	$	—	$	—	$	—	$	808,283	$	3,981	$	812,264
Auto and light truck	411,300		298		—		—		411,598		166		411,764
Medium and heavy duty truck	294,790		—		—		—		294,790		—		294,790
Aircraft	791,559		1,429		3,316		—		796,304		6,110		802,414
Construction equipment	493,131		1,546		—		—		494,677		1,248		495,925
Commercial real estate	713,482		133		—		—		713,615		5,555		719,170
Residential real estate and home equity	517,212		1,310		374		394		519,290		2,641		521,931
Consumer	129,000		453		132		22		129,607		206		129,813
Total	$	4,158,757	$	5,169	$	3,822	$	416	$	4,168,164	$	19,907	$	4,188,071
December 31, 2015
Commercial and agricultural	$	740,335	$	52	$	79	$	—	$	740,466	$	4,283	$	744,749
Auto and light truck	424,997		170		23		—		425,190		46		425,236
Medium and heavy duty truck	278,254		—		—		—		278,254		—		278,254
Aircraft	764,074		9,442		108		—		773,624		4,388		778,012
Construction equipment	454,993		33		—		—		455,026		539		455,565
Commercial real estate	698,514		362		—		—		698,876		1,392		700,268
Residential real estate and home equity	486,768		1,135		533		71		488,507		1,961		490,468
Consumer	121,422		455		103		51		122,031		109		122,140
Total	$	3,969,357	$	11,649	$	846	$	122	$	3,981,974	$	12,718	$	3,994,692

Schedule of impaired loans and leases, segregated by class, and the corresponding reserve for impaired loan and lease losses

The following table shows impaired loans and leases, segregated by class, and the corresponding reserve for impaired loan and lease losses.

(Dollars in thousands)	Recorded Investment		Unpaid Principal Balance		Related Reserve
December 31, 2016
With no related reserve recorded:
Commercial and agricultural	$	1,700	$	1,700	$	—
Auto and light truck	115		115		—
Medium and heavy duty truck	—		—		—
Aircraft	2,918		2,918		—
Construction equipment	605		605		—
Commercial real estate	2,607		2,607		—
Residential real estate and home equity	—		—		—
Consumer	—		—		—
Total with no related reserve recorded	7,945		7,945		—
With a reserve recorded:
Commercial and agricultural	1,890		1,890		297
Auto and light truck	—		—		—
Medium and heavy duty truck	—		—		—
Aircraft	3,192		3,192		1,076
Construction equipment	562		562		35
Commercial real estate	2,765		2,765		322
Residential real estate and home equity	674		676		148
Consumer	—		—		—
Total with a reserve recorded	9,083		9,085		1,878
Total impaired loans	$	17,028	$	17,030	$	1,878
December 31, 2015
With no related reserve recorded:
Commercial and agricultural	$	1,016	$	1,016	$	—
Auto and light truck	—		—		—
Medium and heavy duty truck	—		—		—
Aircraft	4,384		4,384		—
Construction equipment	539		539		—
Commercial real estate	8,494		8,494		—
Residential real estate and home equity	—		—		—
Consumer	—		—		—
Total with no related reserve recorded	14,433		14,433		—
With a reserve recorded:
Commercial and agricultural	2,884		2,884		649
Auto and light truck	—		—		—
Medium and heavy duty truck	—		—		—
Aircraft	—		—		—
Construction equipment	—		—		—
Commercial real estate	—		—		—
Residential real estate and home equity	366		368		148
Consumer	—		—		—
Total with a reserve recorded	3,250		3,252		797
Total impaired loans	$	17,683	$	17,685	$	797

Schedule of average recorded investment and interest income recognized on impaired loans and leases, segregated by class

The following table shows average recorded investment and interest income recognized on impaired loans and leases, segregated by class, for years ending December 31, 2016, 2015 and 2014.

	2016				2015				2014
(Dollars in thousands)	Average Recorded Investment		Interest Income		Average Recorded Investment		Interest Income		Average Recorded Investment		Interest Income
Commercial and agricultural	$	3,484	$	6	$	5,362	$	32	$	16,325	$	48
Auto and light truck	10		—		—		—		407		—
Medium and heavy duty truck	—		—		—		—		—		—
Aircraft	6,291		2		7,285		6		4,088		28
Construction equipment	766		—		695		—		938		—
Commercial real estate	5,417		123		10,126		518		13,162		588
Residential real estate and home equity	415		15		370		16		376		16
Consumer loans	—		—		—		—		—		—
Total	$	16,383	$	146	$	23,838	$	572	$	35,296	$	680

Schedule of loans and leases classified as troubled debt restructuring and number of modifications

The following table shows the number of loans and leases classified as troubled debt restructuring (TDR) during 2016, 2015 and 2014, segregated by class, as well as the recorded investment as of December 31. The classification between nonperforming and performing is shown at the time of modification. Modification programs focused on extending maturity dates or modifying payment patterns with most TDRs experiencing a combination of concessions. The modifications did not result in the contractual forgiveness of principal or interest. There was one modification during 2016, no modifications during 2015, and three modifications during 2014 that resulted in an interest rate reduction below market rate. Consequently, the financial impact of the modifications was immaterial.

	2016			2015			2014
(Dollars in thousands)	Number of Modifications	Recorded Investment		Number of Modifications	Recorded Investment		Number of Modifications	Recorded Investment
Performing TDRs:
Commercial and agricultural	—	$	—	2	$	218	2	$	273
Auto and light truck	—	—		—	—		—	—
Medium and heavy duty truck	—	—		—	—		—	—
Aircraft financing	—	—		—	—		2	337
Construction equipment financing	—	—		—	—		—	—
Commercial real estate	—	—		—	—		—	—
Residential real estate and home equity	—	—		—	—		—	—
Consumer	—	—		—	—		—	—
Total performing TDR modifications	—	—		2	218		4	610
Nonperforming TDRs:
Commercial and agricultural	—	—		—	—		4	7,315
Auto and light truck	—	—		—	—		—	—
Medium and heavy duty truck	—	—		—	—		—	—
Aircraft financing	—	—		—	—		—	—
Construction equipment financing	1	562		—	—		—	—
Commercial real estate	—	—		—	—		1	798
Residential real estate and home equity	1	314		—	—		—	—
Consumer	—	—		—	—		—	—
Total nonperforming TDR modifications	2	876		—	—		5	8,113
Total TDR modifications	2	$	876	2	$	218	9	$	8,723

Schedule of recorded investment in loans and leases classified as troubled debt restructuring

The following table shows the recorded investment of loans and leases classified as troubled debt restructurings as of December 31.

Year Ended December 31 (Dollars in thousands)	2016		2015
Performing TDRs	$	360	$	7,437
Nonperforming TDRs	1,642		1,926
Total TDRs	$	2,002	$	9,363