Goodwill and other intangible assets (Tables)

3 Months Ended

Mar. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of CDI activity

The following table sets forth activity for CDI for the three months ended March 31, 2015 and 2014 (dollars in thousands).

	Three months ended    March 31,
	2015			2014
Gross core deposit intangibles balance, beginning of period	$	8,196		$	529
Accumulated amortization, beginning of period	(513		)	—
Core deposit intangible, net, beginning of period	7,683			529
Established through acquisitions	—			—
CDI current period amortization	(205		)	(27		)
Total core deposit intangible, end of period	$	7,478		$	502

Schedule of CDI future amortization expenses

The following table provides the estimated future amortization expense of core deposit intangibles for the remaining nine months ending December 31, 2015 and the succeeding four years (dollars in thousands):

Years Ending December 31,
2015	$	615
2016	820
2017	820
2018	820
2019	820