Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2017

Short-Term Borrowings [Abstract]

Information related to short-term borrowings

Information related to short-term borrowings is summarized as follows as of December 31,:

(Dollars in thousands)	2017			2016			2015
Federal funds purchased:
Balance at year-end	$	60,000		$	50,000		$	99,500
Average during the year		54,162			65,257			97,424
Maximum month end balance		80,000			85,000			159,000
Weighted average rate during the year		2.16	%		0.98	%		0.36	%
Weighted average rate at year-end		2.41	%		1.19	%		0.51	%
Securities sold under repurchase agreements:
Balance at year-end	$	182,123		$	173,703		$	167,981
Average during the year		175,539			168,821			162,201
Maximum month end balance		190,326			189,875			178,326
Weighted average rate during the year		0.07	%		0.06	%		0.06	%
Weighted average rate at year-end		0.07	%		0.07	%		0.06	%
Other short-term borrowings:
Balance at year-end	$	477,000		$	458,000		$	175,000
Average during the year		460,334			263,575			80,260
Maximum month end balance		591,000			424,000			175,000
Weighted average rate during the year		1.02	%		0.59	%		0.42	%
Weighted average rate at year-end		1.18	%		0.70	%		0.56	%