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Segment and Related Information (Tables) | 12 Months Ended
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Jun. 30, 2015
Schedule of Segment Performance Based on Income (Loss) before Interest Income and Other Income and Expense | The accounting policies of the segments are the same as those described in the summary of significant accounting policies (Note 1). The Company evaluates segment performance based on income (loss) before interest income and other income and expense.
|  | Diagnostics |  |  | Other |  |  | Total |
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 |
Year ended June 30, 2013: |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 582.4 |  |  | $ | 30.8 |  |  | $ | 613.2 |
Depreciation and amortization |  |  | 5.0 |  |  |  | 3.9 |  |  |  | 8.9 |
Segment operating income (loss) |  |  | 291.5 |  |  |  | (63.5 | ) |  |  | 228.0 |
|  | Years Ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Total operating income for reportable segments |  | $ | 134.2 |  |  | $ | 274.4 |  |  | $ | 228.0 |
Unallocated amounts: |  |  |  |  |  |  |  |  |  |  |  |
Interest income |  |  | 0.4 |  |  |  | 5.4 |  |  |  | 5.5 |
Other |  |  | 0.3 |  |  |  | (2.0 | ) |  |  | (0.2 | )
Income from operations before income taxes |  |  | 134.9 |  |  |  | 277.8 |  |  |  | 233.3 |
Income tax provision |  |  | 54.7 |  |  |  | 101.6 |  |  |  | 86.1 |
Net income |  | $ | 80.2 |  |  | $ | 176.2 |  |  | $ | 147.2 |
Schedule of Significant Revenues from Major Products by Operating Segment | The following table indicates significant revenues from major products by operating segment:
|  | Years Ended June 30, |  |  | Change |  |  | % of Total Revenue |
|  | 2015 |  |  | 2014 |  |  | 2013 |  |  | 2015 |  |  | 2014 |  |  | 2015 |  |  | 2014 |  |  | 2013 |
Diagnostic revenues: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
myRisk |  | $ | 320.7 |  |  | $ | 53.7 |  |  | $ | — |  |  | $ | 267.0 |  |  | $ | 53.7 |  |  |  | 44 | % |  |  | 7 | % |  |  | N/A |
BRACAnalysis |  |  | 237.6 |  |  |  | 517.9 |  |  |  | 460.3 |  |  |  | (280.3 | ) |  |  | 57.6 |  |  |  | 33 | % |  |  | 67 | % |  |  | 75 | %
VectraDA |  |  | 43.7 |  |  |  | 14.0 |  |  |  | — |  |  |  | 29.7 |  |  |  | 14.0 |  |  |  | 6 | % |  |  | 2 | % |  |  | N/A |
Other |  |  | 93.5 |  |  |  | 162.6 |  |  |  | 122.1 |  |  |  | (69.1 | ) |  |  | 40.5 |  |  |  | 13 | % |  |  | 21 | % |  |  | 20 | %
Total diagnostic revenue |  |  | 695.5 |  |  |  | 748.2 |  |  |  | 582.4 |  |  |  | (52.7 | ) |  |  | 165.8 |  |  |  | 96 | % |  |  | 96 | % |  |  | 95 | %
Other |  |  | 27.6 |  |  |  | 30.0 |  |  |  | 30.8 |  |  |  | (2.4 | ) |  |  | (0.8 | ) |  |  | 4 | % |  |  | 4 | % |  |  | 5 | %
Total revenue |  | $ | 723.1 |  |  | $ | 778.2 |  |  | $ | 613.2 |  |  | $ | (55.1 | ) |  | $ | 165.0 |  |  |  | 100 | % |  |  | 100 | % |  |  | 100 | %
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, |
|  | 2015 |  |  | 2014 |
Net equipment, leasehold improvements and property: |  |  |  |  |  |  |  |
Diagnostics |  |  | 34.5 |  |  |  | 24.3 |
Other |  |  | 32.7 |  |  |  | 10.3 |
Total |  | $ | 67.2 |  |  | $ | 34.6 |
Total Assets: |  |  |  |  |  |  |  |
Diagnostics |  |  | 450.6 |  |  |  | 409.9 |
Other |  |  | 130.2 |  |  |  | 143.4 |
Total |  | $ | 580.8 |  |  | $ | 553.3 |
Reconciliation of Assets by Operating Segment to Total Assets | The following table reconciles assets by operating segment to total assets:
|  | June 30, |
|  | 2015 |  |  | 2014 |
Total assets by segment |  | $ | 580.8 |  |  | $ | 553.3 |
Cash, cash equivalents, and marketable investment securities (1) |  |  | 185.4 |  |  |  | 270.5 |
Total |  | $ | 766.2 |  |  | $ | 823.8 |
(1) | The Company manages cash, cash equivalents, and marketable investment securities at the consolidated level for all segments

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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8736-108599 + Details
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