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Share-based Payments | 3 Months Ended
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Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Share-based Payments | Share-based Payments Share-based Compensation Expense The following table summarizes share-based compensation expense included within our condensed consolidated statements of income:
| For the Three Months Ended March 31,
(In millions) | 2015 |  | 2014
Research and development | $ | 35.4 |  |  | $ | 29.4 |
Selling, general and administrative | 55.6 |  |  | 47.2 |
Subtotal | 91.0 |  |  | 76.6 |
Capitalized share-based compensation costs | (3.4 | ) |  | (2.6 | )
Share-based compensation expense included in total cost and expenses | 87.6 |  |  | 74.0 |
Income tax effect | (26.7 | ) |  | (22.3 | )
Share-based compensation expense included in net income attributable to Biogen Inc. | $ | 60.9 |  |  | $ | 51.7 |
The following table summarizes share-based compensation expense associated with each of our share-based compensation programs:
| For the Three Months Ended March 31,
(In millions) | 2015 |  | 2014
Market stock units | $ | 17.0 |  |  | $ | 14.9 |
Time-vested restricted stock units | 31.9 |  |  | 29.2 |
Cash settled performance units | 23.8 |  |  | 21.4 |
Performance units | 13.2 |  |  | 6.3 |
Employee stock purchase plan | 5.1 |  |  | 4.8 |
Subtotal | 91.0 |  |  | 76.6 |
Capitalized share-based compensation costs | (3.4 | ) |  | (2.6 | )
Share-based compensation expense included in total cost and expenses | $ | 87.6 |  |  | $ | 74.0 |
Grants Under Share-based Compensation Plans The following table summarizes our equity grants to employees, officers and directors under our current stock plans:
| For the Three Months Ended March 31,
| 2015 |  | 2014
Market stock units | 175,000 |  |  | 214,000 |
Cash settled performance shares | 112,000 |  |  | 172,000 |
Performance units | 89,000 |  |  | 50,000 |
Time-vested restricted stock units | 351,000 |  |  | 392,000 |
In addition, for the three months ended March 31, 2015, approximately 68,000 shares were issued under our employee stock purchase plan compared to approximately 74,000 shares issued in the prior year comparative period.

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- Definition The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 50 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 40 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5444-113901 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 14 + Details
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