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Short-term Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Short-term Debt [Abstract]

Summary of Short-Term Borrowings

Short-term borrowings at December 31 were as follows:

	2017											2016											2015
	Ending Balance				Average Balance				Average Rate			Ending Balance				Average Balance				Average Rate			Ending Balance				Average Balance				Average Rate
	(dollars in thousands)
Federal funds purchased	$	—			$	6,225			1.24	%		$	—			$	6,887			0.60	%		$	4,000			$	14,832			0.36	%
Borrowings from FHLB	567,500				710,932				1.18			748,000				1,265,932				0.61			1,400,000				1,117,522				0.42
Securities sold under agreements to repurchase	139,966				150,234				0.24			119,943				114,918				0.23			106,825				120,177				0.23
Total	$	707,466			$	867,391			1.01			$	867,943			$	1,387,737			0.58			$	1,510,825			$	1,252,531			0.40
Maximum total at any month-end	$	967,259										$	1,530,678										$	1,510,825
Weighted average rate at year-end									1.27	%										0.63	%										0.53	%

Interest Expense on Short-Term Borrowings

Interest expense on short-term borrowings for the years ended December 31 is detailed below:

	2017				2016				2015
	(dollars in thousands)
Federal funds purchased	$	77			$	41			$	54
Borrowings from FHLB	8,360				7,765				4,684
Securities sold under agreements to repurchase	362				270				280
Total interest on short-term borrowings	$	8,799			$	8,076			$	5,018

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Tabular disclosure of short-term debt arrangements (having initial terms of repayment within one year or the normal operating cycle, if longer) including: (1) description of the short-term debt arrangement; (2) identification of the lender or type of lender; (3) repayment terms; (4) weighted average interest rate; (5) carrying amount of funds borrowed under the specified short-term debt arrangement as of the balance sheet date; (6) description of the refinancing of a short-term obligation when that obligation is excluded from current liabilities in the balance sheet; and (7) amount of a short-term obligation that has been excluded from current liabilities in the balance sheet because of a refinancing of the obligation.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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