Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Fair Value Disclosures [Abstract]

Assets measured on recurring basis

	Recurring Fair Value Measurements at Reporting Date
	December 31, 2019						December 31, 2018
(Dollars in thousands)	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Assets:
Available-for-sale investment securities:
Obligations of:
U.S. government sponsored agencies	$	—	$	8,209	$	—	$	—	$	—	$	—
States and political subdivisions	—		114,104		—		—		88,587		—
Residential mortgage-backed securities	—		791,009		—		—		692,608		—
Commercial mortgage-backed securities	—		18,088		—		—		6,707		—
Bank-issued trust preferred securities	—		4,691		—		—		3,989		—
Total available-for-sale securities	—		936,101		—		—		791,891		—
Equity investment securities (a)	123		198		—		94		183		—
Derivative assets (b)	—		11,419		—		—		4,544		—
Liabilities:
Derivative liabilities (c)	$	—	$	15,116	$	—	$	—	$	3,562	$	—

(a) Included in other investment securities on the Consolidated Balance Sheets. For additional information, see "Note 3 Investment Securities."

(b) Included in other assets on the Consolidated Balance Sheets. For additional information, see "Note 14 Derivative Financial Instruments."

(c) Included in accrued expenses and other liabilities on the Consolidated Balance Sheets. For additional information, see "Note 14 Derivative Financial Instruments."

Fair Values of Financial Assets and Liabilities on Balance Sheets

	Fair Value Measurements of Other Financial Instruments
(Dollars in thousands)	Fair Value Hierarchy Level	December 31, 2019				December 31, 2018
		Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	115,193	$	115,193	$	77,612	$	77,612
Held-to-maturity investment securities:
Obligations of:
States and political subdivisions	2	4,346		4,791		4,403		4,896
Residential mortgage-backed securities	2	21,494		21,569		29,044		28,603
Commercial mortgage-backed securities	2	5,907		6,181		3,514		3,464
Total held-to-maturity securities		31,747		32,541		36,961		36,963
Other investment securities:
FHLB stock	2	27,235		27,235		29,367		29,367
FRB stock	2	13,310		13,310		12,294		12,294
Nonqualified deferred compensation	2	1,499		1,499		987		987
Other investment securities	2	365		365		60		60
Other investment securities (a)		42,409		42,409		42,708		42,708
Net loans	3	2,851,969		3,147,190		2,708,583		2,907,537
Loans held for sale	2	6,499		6,553		5,470		5,492
Bank owned life insurance	3	69,722		69,722		68,934		68,934
Servicing rights (b)	3	2,742		3,881		2,655		4,568
Financial liabilities:
Deposits	2	$	3,291,412	$	3,292,950	$	2,955,465	$	2,953,452
Short-term borrowings	2	316,977		317,973		356,198		349,994
Long-term borrowings	2	83,123		82,701		109,644		107,696

Fair Value Measurements, Nonrecurring

The following table provides the fair value for each class of assets and liabilities required to be measured and reported at fair value on a non-recurring basis on the Consolidated Balance Sheets by level in the fair value hierarchy.

	Non-Recurring Fair Value Measurements at Reporting Date
	December 31, 2019						December 31, 2018
(Dollars in thousands)	Level 1		Level 2		Level 3		Level 1		Level 2		Level 3
Impaired loans	$	—	$	—	$	29,100	$	—	$	—	$	24,129
OREO	—		—		227		—		—		94