Business Segment Information (Tables)

3 Months Ended

Dec. 31, 2018

Segment Reporting [Abstract]

Segment revenue

The following illustrates reportable and operating segment revenue for the periods indicated:

	Three months ended December 31,
(in thousands)	2018			2017
Pharmaceutical Distribution Services	$	43,744,381		$	38,937,698
Other:
MWI Animal Health	954,584			958,572
Global Commercialization Services	716,354			586,379
Total Other	1,670,938			1,544,951
Intersegment eliminations	(22,867		)	(16,317		)
Revenue	$	45,392,452		$	40,466,332

Segment operating income

The following illustrates reportable segment operating income for the periods indicated:

	Three months ended December 31,
(in thousands)	2018			2017
Pharmaceutical Distribution Services	$	373,207		$	388,182
Other	98,934			100,275
Intersegment eliminations	(307		)	(407		)
Total segment operating income	$	471,834		$	488,050

Reconciliation of total segment operating income to income (loss) from operations before income taxes

The following reconciles total segment operating income to income before income taxes for the periods indicated:

	Three months ended December 31,
(in thousands)	2018			2017
Total segment operating income	$	471,834		$	488,050
Gain from antitrust litigation settlements	87,279			—
LIFO credit	3,029			—
PharMEDium remediation costs	(20,495		)	—
New York State Opioid Stewardship Act	22,000			—
Acquisition-related intangibles amortization	(45,152		)	(39,056		)
Employee severance, litigation, and other	(40,672		)	(30,021		)
Operating income	477,823			418,973
Other loss	3,097			324
Interest expense, net	42,170			35,864
Loss on early retirement of debt	—			23,766
Income before income taxes	$	432,556		$	359,019