Goodwill and Other Intangible Assets

12 Months Ended

Sep. 30, 2021

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangible Assets

11) Goodwill and Other Intangible Assets

Goodwill

A summary of changes in the Company’s goodwill during the fiscal years ended September 30, 2021 and 2020 are as follows (in thousands):

Balance as of September 30, 2019	$	244,574
Fiscal year 2020 business combinations		184
Goodwill included within assets held for sale		(4,431	)
Balance as of September 30, 2020		240,327
Fiscal year 2021 business combinations		13,071
Balance as of September 30, 2021	$	253,398

Intangibles, net

Intangible assets subject to amortization consist of the following (in thousands):

	September 30,
	2021						2020
	Gross						Gross
	Carrying		Accum.				Carrying		Accum.
	Amount		Amortization		Net		Amount		Amortization		Net
Customer lists	$	403,913	$	329,406	$	74,507	$	382,942	$	312,928	$	70,014
Trade names and other intangibles		40,548		19,581		20,967		37,382		17,103		20,279
Total	$	444,461	$	348,987	$	95,474	$	420,324	$	330,031	$	90,293

Amortization expense for intangible assets was $19.0 million, $19.6 million, and $19.4 million, for the fiscal years ended September 30, 2021, 2020, and 2019, respectively. Total estimated annual amortization expense related to intangible assets subject to amortization, for the year ended September 30, 2021 and the four succeeding fiscal years ended September 30, is as follows (in thousands):

	Amount
2022	$	17,763
2023	$	16,165
2024	$	13,853
2025	$	11,561
2026	$	8,541