Intangible Assets

3 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

5. Intangible Assets

A summary of our acquired intangible assets subject to amortization, as of December 31, 2018 and September 30, 2018, is as follows:

	December 31, 2018				September 30, 2018
	Gross Carrying Value		Accumulated Amortization		Gross Carrying Value		Accumulated Amortization
Manufacturing technologies, core products and cell lines	$	22,268	$	14,243	$	22,297	$	13,974
Trade names, licenses and patents		8,613		5,463		8,647		5,267
Customer lists, customer relationships and supply agreements		24,385		13,295		24,461		13,051
Non-compete agreements		720		720		720		720
Total	$	55,986	$	33,721	$	56,125	$	33,012

The actual aggregate amortization expense for these intangible assets was $829 and $938 for the three months ended December 31, 2018 and 2017, respectively. The estimated aggregate amortization expense for these intangible assets for each of the fiscal years through fiscal 2024 is as follows: remainder of fiscal 2019 – $2,487, fiscal 2020 – $3,156, fiscal 2021 – $2,560, fiscal 2022 – $2,182, fiscal 2023 – $2,170, and fiscal 2024 – $2,166.