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Deposits
12 Months Ended
Dec. 31, 2017
Deposits [Abstract]  
Deposits Deposits
The distribution of deposits at December 31 was as follows. 
 
2017
2016
 
($ in Thousands)
Noninterest-bearing demand
$
5,478,416

$
5,392,208

Savings
1,524,992

1,431,494

Interest-bearing demand
4,603,157

4,687,656

Money market
8,830,328

8,770,963

Brokered CDs
18,609

52,725

Other time
2,330,460

1,553,402

Total deposits
$
22,785,962

$
21,888,448


Time deposits of $100,000 or more were $1.4 billion and $571 million at December 31, 2017 and 2016, respectively. Time deposits of $250,000 or more were $1.1 billion and $235 million at December 31, 2017 and 2016, respectively.
Aggregate annual maturities of all time deposits at December 31, 2017, are as follows.
Maturities During Year Ending December 31,
($ in Thousands)
2018
$
1,708,582

2019
298,774

2020
198,206

2021
84,306

2022
57,618

Thereafter
1,583

Total
$
2,349,069