Deposits

The following table summarizes deposits at the dates indicated.



	At December 31,
				2016							2015
(Dollars in Thousands)	Weighted Average Rate			Balance		Percent of Total		Weighted Average Rate			Balance		Percent of Total
Core deposits:
NOW		0.06	%	$	1,466,751	16.52	%		0.06	%	$	1,415,430	15.54	%
Non-interest bearing NOW and demand deposit		—		1,054,343		11.88			—		998,393		10.96
Money market		0.26		2,706,895		30.50			0.26		2,560,204		28.12
Savings		0.05		2,048,202		23.07			0.05		2,137,818		23.48
Total core deposits		0.12		7,276,191		81.97			0.12		7,111,845		78.10
Certificates of deposit		1.01		1,600,864		18.03			1.16		1,994,182		21.90
Total deposits		0.28	%	$	8,877,055	100.00	%		0.35	%	$	9,106,027	100.00	%

The aggregate amount of certificates of deposit with balances equal to or greater than $250,000 was $81.7 million at December 31, 2016 and $113.3 million at December 31, 2015. There were no brokered certificates of deposit at December 31, 2016 and 2015.

The following table details the scheduled maturities of our certificates of deposit at December 31, 2016.



Year	Weighted Average Rate				Balance		Percent of Total
				(In Thousands)
2017		0.56	%		$	675,017	42.16	%
2018		1.00			267,346		16.70
2019		1.37			202,000		12.62
2020		1.59			283,692		17.72
2021		1.42			172,014		10.75
2022 and thereafter		1.64			795		0.05
Total		1.01	%		$	1,600,864	100.00	%

The following table summarizes interest expense on deposits for the years indicated.



	For the Year Ended December 31,
(In Thousands)	2016		2015		2014
Interest-bearing NOW	$	808	$	778	$	706
Money market	7,398		6,496		5,527
Savings	1,052		1,093		1,182
Certificates of deposit	17,641		28,976		43,940
Total interest expense on deposits	$	26,899	$	37,343	$	51,355