Core Deposits and Other Intangibles

3 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Core Deposits and Other Intangibles

Core Deposits and Other Intangibles

A summary of intangible assets subject to amortization is as follows:

	Core Deposit Intangible			Brand Intangible			Customer Relationships Intangible			Other Intangible			Total
As of December 31, 2016	(dollars in thousands)
Gross carrying amount	$	67,018		$	8,464		$	16,089		$	538		$	92,109
Accumulated amortization	(60,229		)	(4,841		)	(16,089		)	(57		)	(81,216		)
Net intangible assets	$	6,789		$	3,623		$	—		$	481		$	10,893
As of September 30, 2016
Gross carrying amount	$	67,018		$	8,464		$	16,089		$	538		$	92,109
Accumulated amortization	(59,842		)	(4,700		)	(15,800		)	(35		)	(80,377		)
Net intangible assets	$	7,176		$	3,764		$	289		$	503		$	11,732

Amortization expense of intangible assets was $0.8 million and $0.7 million for the three months ended December 31, 2016 and 2015, respectively.

The estimated amortization expense of intangible assets assumes no activities, such as acquisitions, which would result in additional amortizable intangible assets. Estimated amortization expense of intangible assets in subsequent fiscal years is as follows:

	(dollars in thousands)
Remaining in 2017	$	1,502
2018	1,614
2019	1,489
2020	1,363
2021	1,267
2022 and thereafter	3,658
Total	$	10,893