Deposits (Tables)

12 Months Ended

Dec. 31, 2017

Deposits [Abstract]

Deposits Summary

At December 31, 2017 and 2016, deposits consisted of the following ($ in thousands):

	December31,
	2017		2016
Noninterest-bearing demand	$	2,978,074	$	2,973,238
Interest-bearing demand		2,432,814		1,875,312
Savings		3,408,183		3,586,369
Time		1,758,441		1,621,093
Total	$	10,577,512	$	10,056,012

Interest Expense on Deposits by Type

Interest expense on deposits by type consisted of the following for the periods presented ($ in thousands):

	Years Ended December 31,
	2017		2016		2015
Interest-bearing demand	$	6,820	$	3,297	$	3,235
Savings		6,047		2,657		2,547
Time		9,850		6,794		6,816
Total	$	22,717	$	12,748	$	12,598

Maturities on Outstanding Time Deposits of $100 thousand or More

The maturities of time deposits of $100 thousand or more at December 31, 2017 and 2016 are as follows ($ in thousands):

	December31,
	2017		2016
3 months or less	$	203,679	$	150,991
Over 3 months through 6 months		183,679		147,089
Over 6 months through 12 months		276,944		204,944
Over 12 months		179,237		179,469
Total	$	843,539	$	682,493

Maturities of Interest-Bearing Deposits

The maturities of interest-bearing deposits at December 31, 2017, are as follows ($ in thousands):

2018	$	1,356,448
2019		268,989
2020		73,745
2021		23,191
2022 and thereafter		36,068
Total time deposits		1,758,441
Interest-bearing deposits with no stated maturity		5,840,997
Total interest-bearing deposits	$	7,599,438