Short-term Funding (Tables)

12 Months Ended

Dec. 31, 2017

Short-term Debt [Abstract]

Short-term funding

The components of short-term funding (funding with original contractual maturities of one year or less) at December 31 were as follows.

	2017		2016
	($ in Thousands)
Federal funds purchased	$	141,950	$	208,150
Securities sold under agreements to repurchase	182,865		300,197
Federal funds purchased and securities sold under agreements to repurchase	324,815		508,347
FHLB advances	284,000		482,000
Commercial paper	67,467		101,688
Other short-term funding	351,467		583,688
Total short-term funding	$	676,282	$	1,092,035

Schedule of Repurchase Agreements

The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets are presented in the following table.

	Remaining Contractual Maturity of the Agreements
	Overnight and Continuous		Up to 30 days		30-90 days		Greater than 90 days		Total
	($ in Thousands)
December 31, 2017
Repurchase agreements
Agency mortgage-related securities	$	182,865	$	—	$	—	$	—	$	182,865
Total	$	182,865	$	—	$	—	$	—	$	182,865
December 31, 2016
Repurchase agreements
Agency mortgage-related securities	$	300,197	$	—	$	—	$	—	$	300,197
Total	$	300,197	$	—	$	—	$	—	$	300,197