Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Change in other intangible assets

The following table presents the change in the other intangible assets for the periods indicated:

	Years Ended   December 31,
	2014		2013		2012
	(In thousands)
Balance at the beginning of the year	$	1,615	$	1,086	$	1,513
Additions as a result of acquisitions	11,194		1,072		—
Less: amortization expense	1,920		543		427
Balance at the end of the year	$	10,889	$	1,615	$	1,086

Schedule of intangible assets, future amortization expense

The estimated aggregated amortization expense related to these intangible assets for future years is as follows:

	Years Ending December 31,
	(In thousands)
2015	$	2,072
2016	1,443
2017	1,285
2018	1,122
2019	1,043
Thereafter	3,924
	$	10,889