Balance Sheet Offsetting (Tables)

9 Months Ended

Sep. 30, 2017

Offsetting [Abstract]

Schedule of Repurchase Agreements - by maturity date and collateral type

The following table presents the remaining contractual maturities of the Company’s repurchase agreements as of September 30, 2017 and December 31, 2016, disaggregated by the class of collateral pledged.

	Remaining Contractual Maturity of Repurchase Agreements
(dollars in thousands)	Up to 90 days		91-365 days		1-3 Years		After 3 Years		Total
September 30, 2017
Class of Collateral Pledged:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	—	$	—	$	69,717	$	243,168	$	312,885
Debt Securities Issued by States and Political Subdivisions	1,198		3,300		—		—		4,498
Mortgage-Backed Securities:
Residential - Government Agencies	795		—		—		98,253		99,048
Residential - U.S. Government-Sponsored Enterprises	—		—		5,283		83,579		88,862
Total	$	1,993	$	3,300	$	75,000	$	425,000	$	505,293
December 31, 2016
Class of Collateral Pledged:
Debt Securities Issued by the U.S. Treasury and Government Agencies	$	—	$	—	$	200,000	$	104,681	$	304,681
Debt Securities Issued by States and Political Subdivisions	22,050		590		—		—		22,640
Mortgage-Backed Securities:
Residential - Government Agencies	738		—		—		97,281		98,019
Residential - U.S. Government-Sponsored Enterprises	—		—		—		98,038		98,038
Total	$	22,788	$	590	$	200,000	$	300,000	$	523,378

Schedule of assets and liabilities subject to an enforceable master netting arrangement

The following table presents the assets and liabilities subject to an enforceable master netting arrangement, or repurchase agreements, as of September 30, 2017 and December 31, 2016. The swap agreements we have with our commercial banking customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table. As previously mentioned, centrally cleared swap agreements between the Company and institutional counterparties are also excluded from this table.

	(i)		(ii)		(iii) = (i)-(ii)		(iv)				(v) = (iii)-(iv)
	Gross Amounts Recognized in the Statements  of Condition		Gross Amounts Offset in the Statements  of Condition		Net Amounts Presented in the Statements  of Condition		Gross Amounts Not Offset in the Statements of Condition
(dollars in thousands)							Netting Adjustments per Master Netting Arrangements		Fair Value of Collateral Pledged 1		Net Amount
September 30, 2017
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	4,168	$	—	$	4,168	$	4,168	$	—	$	—
Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties	5,998		—		5,998		4,168		1,830		—
Repurchase Agreements:
Private Institutions	500,000		—		500,000		—		500,000		—
Government Entities	5,293		—		5,293		—		5,293		—
	$	505,293	$	—	$	505,293	$	—	$	505,293	$	—
December 31, 2016
Assets:
Interest Rate Swap Agreements:
Institutional Counterparties	$	5,094	$	—	$	5,094	$	5,094	$	—	$	—
Liabilities:
Interest Rate Swap Agreements:
Institutional Counterparties	6,489		—		6,489		5,094		500		895
Repurchase Agreements:
Private Institutions	500,000		—		500,000		—		500,000		—
Government Entities	23,378		—		23,378		—		23,378		—
	$	523,378	$	—	$	523,378	$	—	$	523,378	$	—

¹ The application of collateral cannot reduce the net amount below zero. Therefore, excess collateral is not reflected in this column. For swap agreements with institutional counterparties, the fair value of investment securities pledged was $6.0 million as of September 30, 2017. For repurchase agreements with private institutions, the fair value of investment securities pledged was $567.3 million and $599.3 million as of September 30, 2017 and December 31, 2016, respectively. For repurchase agreements with government entities, the fair value of investment securities pledged was $7.0 million and $28.9 million as of September 30, 2017 and December 31, 2016, respectively.