Goodwill and other intangible assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The following table sets forth activity for CDI for the years ended December 31, 2015 and 2014 (dollars in thousands). The Company had $0.5 million recorded CDI and no amortization expense during 2013.

	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	—			7,667
CDI current period amortization	(820		)	(513		)
Total core deposit intangible, end of period	$	6,863		$	7,683

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The following table provides the estimated future amortization expense of CDI for the succeeding five years (dollars in thousands):

Years Ending December 31,
2016	$	820
2017	820
2018	820
2019	820
2020	820