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Deposits (Tables)

12 Months Ended

Dec. 31, 2017

Banking and Thrift [Abstract]

Composition of Deposits and Interest Expenses

The following table presents the composition of deposits at December 31 and interest expense for the years ended December 31:



	2017								2016								2015
(dollars in thousands)	Balance				Interest Expense				Balance				Interest Expense				Balance				Interest Expense
Noninterest-bearing demand	$	1,387,712			$	—			$	1,263,833			$	—			$	1,227,766			$	—
Interest-bearing demand	603,141				67				638,300				111				616,188				818
Money market	1,146,156				9,204				936,461				4,199				605,184				1,299
Savings	893,119				2,081				1,050,131				2,002				1,061,265				1,712
Certificates of deposit	1,397,763				13,978				1,383,652				13,380				1,366,208				9,115
Total	$	5,427,891			$	25,330			$	5,272,377			$	19,692			$	4,876,611			$	12,944

Scheduled Maturities of Certificates of Deposit

The following table indicates the scheduled maturities of certificates of deposit at December 31, 2017:



(dollars in thousands)	Amount
2018	$	1,015,515
2019	233,932
2020	43,461
2021	65,563
2022	33,172
Thereafter	6,120
Total	$	1,397,763