Goodwill and Other Intangible Assets (Tables)

6 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of changes in the carrying value of goodwill by reportable segment

The following is a summary of the changes in the carrying value of goodwill, by reportable segment, for the six months ended March 31, 2020:

(in thousands)	Pharmaceutical Distribution Services		Other			Total
Goodwill as of September 30, 2019	$	4,852,775	$	1,852,732		$	6,705,507
Foreign currency translation	—		(1,374		)	(1,374		)
Goodwill as of March 31, 2020	$	4,852,775	$	1,851,358		$	6,704,133

Schedule of indefinite-lived intangible assets

The following is a summary of other intangible assets:

	March 31, 2020								September 30, 2019
(in thousands)	Weighted Average Remaining Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Indefinite-lived trade names		$	685,198	$	—		$	685,198	$	685,324	$	—		$	685,324
Finite-lived:
Customer relationships	14 years	1,670,249		(520,094		)	1,150,155		1,931,212		(489,471		)	1,441,741
Trade names and other	14 years	209,204		(109,109		)	100,095		271,521		(103,750		)	167,771
Total other intangible assets		$	2,564,651	$	(629,203	)	$	1,935,448	$	2,888,057	$	(593,221	)	$	2,294,836

Schedule of finite-lived intangible assets

The following is a summary of other intangible assets:

	March 31, 2020								September 30, 2019
(in thousands)	Weighted Average Remaining Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Indefinite-lived trade names		$	685,198	$	—		$	685,198	$	685,324	$	—		$	685,324
Finite-lived:
Customer relationships	14 years	1,670,249		(520,094		)	1,150,155		1,931,212		(489,471		)	1,441,741
Trade names and other	14 years	209,204		(109,109		)	100,095		271,521		(103,750		)	167,771
Total other intangible assets		$	2,564,651	$	(629,203	)	$	1,935,448	$	2,888,057	$	(593,221	)	$	2,294,836