Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Net carrying value of other intangible assets

The following table shows the net carrying value of the Corporation's other intangible assets:

	December 31,
(Dollars in thousands)	2016		2015
Core deposit intangible assets	$	40,211	$	26,654
Non-compete intangible assets	—		328
Total other intangible assets	$	40,211	$	26,982

Carrying amount, accumulated amortization and amortization expense of core deposit intangible assets

The following table presents the Corporation's carrying amount and accumulated amortization of CDIs:

	December 31,
(Dollars in thousands)	2016		2015
Gross carrying amount	$	59,143	$	40,055
Accumulated amortization	18,932		13,401
Net carrying amount	$	40,211	$	26,654

Estimated future amortization expense on CDIs

The estimated future amortization expense on CDIs for the next five years is as follows:

(Dollars in thousands)	Estimated amortization expense
2017	$	5,952
2018	5,703
2019	5,441
2020	4,850
2021	4,471