Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of amounts of non-hedging derivative financial instruments

The following table shows the amounts of non-hedging derivative financial instruments at December 31, 2019 and 2018.

			Asset derivatives			Liability derivatives
(Dollars in thousands)	Notional or contractual amount		Statement of Financial Condition classification	Fair value		Statement of Financial Condition classification	Fair value
Interest rate swap contracts	$	1,074,809	Other assets	$	21,975	Other liabilities	$	22,352
Loan commitments	9,950		Mortgages held for sale	185		N/A	—
Forward contracts - mortgage loan	23,632		N/A	—		Mortgages held for sale	38
Total - December 31, 2019	$	1,108,391		$	22,160		$	22,390
Interest rate swap contracts	$	855,848	Other assets	$	7,124	Other liabilities	$	7,250
Loan commitments	5,871		Mortgages held for sale	112		N/A	—
Forward contracts - mortgage loan	14,087		N/A	—		Mortgages held for sale	135
Total - December 31, 2018	$	875,806		$	7,236		$	7,385

Schedule of amounts included in the consolidated statements of income for non-hedging derivative financial instruments

The following table shows the amounts included on the Consolidated Statements of Income for non-hedging derivative financial instruments at December 31, 2019, 2018 and 2017.

		Gain (loss)
(Dollars in thousands)	Statement of Income classification	2019			2018			2017
Interest rate swap contracts	Other expense	$	(252	)	$	(30	)	$	26
Interest rate swap contracts	Other income	1,356			1,028			1,585
Loan commitments	Mortgage banking	73			46			23
Forward contracts - mortgage loan	Mortgage banking	97			(125		)	(232		)
Total		$	1,274		$	919		$	1,402

Schedule of offsetting of financial assets and derivative assets

The following table shows the offsetting of financial assets and derivative assets at December 31, 2019 and 2018.

							Gross Amounts Not Offset in the Statement of Financial Condition
(Dollars in thousands)	Gross Amounts of Recognized Assets		Gross Amounts Offset in the Statement of Financial Condition		Net Amounts of Assets Presented in the Statement of Financial Condition		Financial Instruments		Cash Collateral Received		Net Amount
December 31, 2019
Interest rate swaps	$	22,279	$	304	$	21,975	$	—	$	—	$	21,975
December 31, 2018
Interest rate swaps	$	7,128	$	4	$	7,124	$	177	$	610	$	6,337

Schedule of offsetting of financial liabilities and derivative liabilities

The following table shows the offsetting of financial liabilities and derivative liabilities at December 31, 2019 and 2018.

							Gross Amounts Not Offset in the Statement of Financial Condition
(Dollars in thousands)	Gross Amounts of Recognized Liabilities		Gross Amounts Offset in the Statement of Financial Condition		Net Amounts of Liabilities Presented in the Statement of Financial Condition		Financial Instruments		Cash Collateral Pledged		Net Amount
December 31, 2019
Interest rate swaps	$	22,656	$	304	$	22,352	$	23,482	$	—	$	(1,130	)
Repurchase agreements	120,459		—		120,459		120,459		—		—
Total	$	143,115	$	304	$	142,811	$	143,941	$	—	$	(1,130	)
December 31, 2018
Interest rate swaps	$	7,254	$	4	$	7,250	$	1,700	$	—	$	5,550
Repurchase agreements	103,627		—		103,627		103,627		—		—
Total	$	110,881	$	4	$	110,877	$	105,327	$	—	$	5,550