Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2015

Debt Disclosure [Abstract]

Short-term borrowings

Short-term borrowings as of December 31 are summarized as follows:

	2015		2014
Securities sold under agreements to repurchase	$	22,279	$	6,103
Overnight borrowings	400,000		26,300
Total short-term borrowings	$	422,279	$	32,403

Average balances and cost of funds of short-term borrowings

The average balances and cost of funds of short-term borrowings for the years ending December 31 are summarized as follows:

	Average Balances						Cost of Funds
	2015		2014		2013		2015		2014		2013
Overnight borrowings	$	207,575	$	17,899	$	8,072	0.18	%	0.17	%	0.17	%
Securities sold under agreements to repurchase	15,515		4,334		5,107		0.21		0.15		0.17
Total short-term borrowings	$	223,090	$	22,233	$	13,179	0.18	%	0.17	%	0.17	%