XML 22 R33.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Preferred and Common Stockholder's Equity (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2015
Summary of Common Shares Issued and Outstanding | Common shares issued and outstanding
|  | Years Ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Common stock issued and outstanding at July 1 |  |  | 73.5 |  |  |  | 80.6 |  |  |  | 82.6 |
Common stock issued upon exercise of options and employee stock plans |  |  | 1.4 |  |  |  | 3.3 |  |  |  | 3.6 |
Repurchase and retirement of common stock |  |  | (6.0 | ) |  |  | (10.4 | ) |  |  | (5.6 | )
Common stock issued and outstanding at June 30 |  |  | 68.9 |  |  |  | 73.5 |  |  |  | 80.6 |
Schedule of Stock Repurchases | The shares retired, aggregate common stock and additional paid-in capital reductions, and related charges to accumulated deficit for the repurchases for periods ended June 30, 2015, 2014 and 2013 were as follows:
|  | Year ended June 30, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Shares purchased and retired |  |  | 6.0 |  |  |  | 10.4 |  |  |  | 5.6 |
Common stock and additional paid-in-capital reductions |  | $ | 51.5 |  |  | $ | 82.5 |  |  | $ | 42.7 |
Charges to retained earnings |  | $ | 159.2 |  |  | $ | 205.1 |  |  | $ | 103.6 |

X
- Definition Schedule Of Common Stock Repurchased Table. + References No definition available. + Details
Name: | mygn_ScheduleOfCommonStockRepurchasedTableTextBlock
Namespace Prefix: | mygn_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
Name: | us-gaap_ScheduleOfCommonStockOutstandingRollForwardTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration