Deposits (Tables)

12 Months Ended

Dec. 31, 2017

Banking and Thrift [Abstract]

Schedule of Deposits by Type

Deposits at December 31 are summarized as follows:

(Dollars in thousands)	2017		2016
Non-interest-bearing deposits	$	6,209,925	$	4,928,878
Negotiable order of withdrawal (NOW)	4,348,939		3,314,281
Money market deposits accounts (MMDA)	7,674,291		6,219,532
Savings deposits	846,074		814,385
Certificates of deposit and other time deposits	2,387,488		2,131,207
	$	21,466,717	$	17,408,283

Schedule of Time Deposits

Total time deposits summarized by denomination at December 31 are as follows:

(Dollars in thousands)	2017		2016
Time deposits less than $250,000	$	1,768,047	$	1,661,631
Time deposits greater than $250,000	619,441		469,576
	$	2,387,488	$	2,131,207

Schedule of Maturities of Certificates of Deposit

A schedule of maturities of all time deposits as of December 31, 2017 is as follows:

(Dollars in thousands)
Years ending December 31
2018	$	1,670,503
2019	401,855
2020	158,555
2021	65,885
2022	78,500
2023 and thereafter	12,190
	$	2,387,488