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Earnings Per Share - Narrative (Detail) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Mar. 27, 2015 employee $ / shares shares | Jun. 30, 2015 shares | Jun. 30, 2014 shares | Jun. 30, 2015 shares | Jun. 30, 2014 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Issued (shares) |  | 565,000 |  | 2,071,700 |
Weighted-average options, RSUs, and ESPP shares outstanding (shares) |  | 8,873,769 | 6,061,542 | 8,288,772 | 5,593,465
Feeney Wireless |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Number of grant recipients (employees) | employee | 91 |  |  |  |
Issued (shares) | 323,000 |  |  |  |
Exercise price ($ per share) | $ / shares | $ 4.65 |  |  |  |
Employee Stock Option | Feeney Wireless |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Expected term | 10 years |  |  |  |
Vesting on First Anniversary | Employee Stock Option | Feeney Wireless |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting percentage | 25.00% |  |  |  |
Monthly Vesting After First Anniversary | Employee Stock Option | Feeney Wireless |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting percentage | 75.00% |  |  |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Antidilution -URI http://asc.fasb.org/extlink&oid=6505113 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Diluted Earnings Per Share -URI http://asc.fasb.org/extlink&oid=6510752 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Contingent Stock Agreement -URI http://asc.fasb.org/extlink&oid=6508534 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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