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Share-Based Compensation (Tables) | 12 Months Ended
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Jun. 30, 2014
Schedule of Fair Value of Stock Option Grant Weighted-Average Assumptions | The fair value of each option grant is estimated on the date of the grant using the Black-Scholes option-pricing model with the following weighted-average assumptions used for grants for the fiscal year ended June 30:
|  | 2014 |  | 2013 |  | 2012
Risk-free interest rate |  | 1.6% |  | 0.8% |  | 1.0%
Expected dividend yield |  | 0% |  | 0% |  | 0%
Expected lives (in years) |  | 4.1 - 4.7 |  | 4.2 - 4.7 |  | 4.2 - 4.6
Expected volatility |  | 40% |  | 44% |  | 44%
Schedule of Share-Based Compensation Arrangement by Share Based Payment Award Options Outstanding | A summary of activity is as follows:
|  | 2014 |  |  | 2013 |  |  | 2012 |
|  | Number of shares |  |  | Weighted average exercise price |  |  | Number of shares |  |  | Weighted average exercise price |  |  | Number of shares |  |  | Weighted average exercise price |
Options outstanding at beginning of year |  |  | 14,434,970 |  |  |  | 21.75 |  |  |  | 15,233,281 |  |  | $ | 19.32 |  |  |  | 14,453,913 |  |  | $ | 18.22 |
Options granted |  |  | 3,320,553 |  |  |  | 26.52 |  |  |  | 2,957,623 |  |  |  | 27.09 |  |  |  | 3,188,160 |  |  |  | 20.42 |
Less: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Options exercised |  |  | (3,122,427 | ) |  |  | 19.44 |  |  |  | (3,490,495 | ) |  |  | 15.65 |  |  |  | (1,852,245 | ) |  |  | 11.94 |
Options canceled or expired |  |  | (394,913 | ) |  |  | 24.30 |  |  |  | (265,439 | ) |  |  | 22.26 |  |  |  | (556,547 | ) |  |  | 21.48 |
Options outstanding at end of year |  |  | 14,238,183 |  |  |  | 23.30 |  |  |  | 14,434,970 |  |  |  | 21.75 |  |  |  | 15,233,281 |  |  |  | 19.32 |
Options exercisable at end of year |  |  | 7,149,155 |  |  |  | 21.90 |  |  |  | 7,480,472 |  |  |  | 20.51 |  |  |  | 8,397,678 |  |  |  | 18.01 |
Options vested and expected to vest |  |  | 13,374,736 |  |  |  | 23.12 |  |  |  | 13,543,852 |  |  |  | 21.58 |  |  |  | 14,514,637 |  |  |  | 19.28 |
Weighted average fair value of options granted during the year |  |  |  |  |  |  | 10.04 |  |  |  |  |  |  |  | 9.87 |  |  |  |  |  |  |  | 7.47 |
Schedule of Share-Based Compensation Arrangement by Share Based Payment Award Options Outstanding and Option Exercisable | The following table summarizes information about stock options outstanding at June 30, 2014:
|  | Options outstanding |  |  | Options exercisable |
Range of exercise prices |  | Number outstanding at June 30, 2014 |  |  | Weighted average remaining contractual life (years) |  |  | Weighted average exercise price |  |  | Number exercisable at June 30, 2014 |  |  | Weighted average exercise price |
$5.89 - 19.47 |  |  | 4,750,203 |  |  |  | 5.85 |  |  | $ | 17.20 |  |  |  | 3,103,525 |  |  | $ | 16.44 |
20.01 - 26.49 |  |  | 5,531,296 |  |  |  | 6.55 |  |  |  | 25.03 |  |  |  | 2,064,390 |  |  |  | 23.14 |
26.84 - 30.34 |  |  | 3,929,684 |  |  |  | 7.09 |  |  |  | 28.16 |  |  |  | 1,975,740 |  |  |  | 29.17 |
30.53 - 37.73 |  |  | 27,000 |  |  |  | 7.18 |  |  |  | 34.05 |  |  |  | 5,500 |  |  |  | 31.11 |
|  |  | 14,238,183 |  |  |  | 6.47 |  |  |  |  |  |  |  | 7,149,155 |  |  |  | 21.90 |
Schedule of Share-Based Compensation Recognized in Consolidated Statements of Comprehensive Income | Share-based compensation expense recognized and included in the consolidated statements of comprehensive income for the fiscal years ended June 30, 2014, 2013 and 2012 was as follows:
|  | Years Ended June 30, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Cost of molecular diagnostic testing |  | $ | 833 |  |  | $ | 1,030 |  |  | $ | 1,158 |
Cost of pharmaceutical and clinical services |  |  | 317 |  |  |  | 219 |  |  |  | 85 |
Research and development expense |  |  | 5,429 |  |  |  | 3,246 |  |  |  | 3,350 |
Selling, general, and administrative expense |  |  | 27,418 |  |  |  | 22,117 |  |  |  | 21,682 |
Total share-based compensation expense |  | $ | 33,997 |  |  | $ | 26,612 |  |  | $ | 26,275 |
Schedule of Unrecognized Share-Based Compensation Cost | The estimated unrecognized share-based compensation cost and related weighted average recognition period, aggregate intrinsic value of options outstanding, and aggregate intrinsic value of options that are fully vested is as follows:
(In thousands) |  | As of June 30, 2014 |
Unrecognized share-based compensation cost |  | $ | 41,728 |
Aggregate intrinsic value of options outstanding |  | $ | 222,451 |
Aggregate intrinsic value of options fully vested |  | $ | 121,659 |
Schedule of Intrinsic Value of Options Exercised | The total intrinsic value of options exercised during 2014, 2013 and 2012 was as follows:
|  | Years Ended June 30, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Total intrinsic value of options exercised |  | $ | 49,379 |  |  | $ | 51,785 |  |  | $ | 21,575 |
Schedule of Shares Purchased and Compensation Expenses | Shares purchased under and compensation expense associated with the 1995 and 2012 Plans for the years reported are as follows:
|  | Years Ended June 30, |
(In thousands) |  | 2014 |  |  | 2013 |  |  | 2012 |
Shares purchased under the Plans |  |  | 169 |  |  |  | 149 |  |  |  | 161 |
Plan compensation expense |  | $ | 1,317 |  |  | $ | 885 |  |  | $ | 892 |
Employee Stock Purchase Plan |
Schedule of Fair Value of Stock Option Grant Weighted-Average Assumptions | The fair value of shares issued under the Plan that was in effect for each period reported was calculated using the Black-Scholes option-pricing model using the following weighted-average assumptions:
|  | 2014 |  |  | 2013 |  |  | 2012 |
Risk-free interest rate |  |  | 0.1 | % |  |  | 0.1 | % |  |  | 0.1 | %
Expected dividend yield |  |  | 0 | % |  |  | 0 | % |  |  | 0 | %
Expected lives (in years) |  |  | 0.5 |  |  |  | 0.5 |  |  |  | 0.5 |
Expected volatility |  |  | 56 | % |  |  | 37 | % |  |  | 30 | %

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