Segment and Related Information (Tables)

12 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Segment Performance Based on Income (Loss) before Interest Income and Other Income and Expense

The Company evaluates segment performance based on income (loss) before interest income and other income and expense.

	Diagnostics		Other			Total
Year ended June 30, 2016:
Revenues	$	705.7	$	48.1		$	753.8
Depreciation and amortization		21.5		5.2			26.7
Segment operating income (loss)		239.3		(72.5	)		166.8
Year ended June 30, 2015:
Revenues	$	695.5	$	27.6		$	723.1
Depreciation and amortization		20.5		4.5			25.0
Segment operating income (loss)		217.1		(82.9	)		134.2
Year ended June 30, 2014:
Revenues	$	748.2	$	30.0		$	778.2
Depreciation and amortization		9.9		3.9			13.8
Segment operating income (loss)		338.0		(63.6	)		274.4

	Years Ended June 30,
	2016		2015		2014
Total operating income for reportable segments	$	166.8	$	134.2	$	274.4
Unallocated amounts:
Interest income		0.9		0.4		5.4
Other		1.2		0.3		(2.0	)
Income from operations before income taxes		168.9		134.9		277.8
Income tax provision		43.6		54.7		101.6
Net income	$	125.3	$	80.2	$	176.2

Schedule Of Comparison of Balance Sheet Assets by Operating Segment

The following table sets forth a comparison of balance sheet assets by operating segment:

	June 30,
	2016		2015
Net equipment, leasehold improvements and property:
Diagnostics		26.3		34.5
Other		32.0		32.7
Total	$	58.3	$	67.2
Total Assets:
Diagnostics		512.4		450.6
Other		129.2		130.2
Total	$	641.6	$	580.8

Summary of Assets by Geographical Region

The following table reconciles assets by geographical region:

	June 30,
	2016		2015
Net equipment, leasehold improvements and property:
United States		33.6		42.2
Rest of world		24.7		25.0
Total	$	58.3	$	67.2
Total Assets:
United States		532.6		537.3
Rest of world		109.0		43.5
Total	$	641.6	$	580.8

Reconciliation of Assets by Operating Segment and Geographic Region to Total Assets

The following table reconciles assets by operating segment and geographic region to total assets:

	June 30,
	2015		2015
Total assets by segment and geographical region	$	641.6	$	580.8
Cash, cash equivalents, and marketable investment securities (1)		238.9		185.4
Total	$	880.5	$	766.2

(1) The Company manages cash, cash equivalents, and marketable investment securities at the consolidated level for all segments