2.4.0.82103100 - Disclosure - Stock-Based Compensationtruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001113481duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Disclosure of Compensation Related Costs, Share-based Payments [Abstract]2false 2us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;text-indent:18px;font-size:10pt;"> Stock-Based Compensation</div><div style="line-height:120%;text-align:left;padding-left:18px;font-size:10pt;"> </div><div style="line-height:120%;text-align:justify;text-indent:18px;font-size:10pt;">The Company recorded approximately $5.8 million and $10.5 million of stock-based compensation expense for the three and six months ended June 30, 2013, respectively. The Company recorded approximately $4.2 million and $7.3 million of stock-based compensation expense for the three and six months ended June 30, 2012, respectively. As of June 30, 2013, there was approximately $24.8 million of total unrecognized compensation costs related to non-vested stock-based employee compensation arrangements granted under the Company's equity compensation plans. The Company expects to recognize those costs over a weighted average period of 1.38 years.</div><div style="line-height:120%;text-align:left;font-size:10pt;"> </div><div style="line-height:120%;text-align:justify;text-indent:18px;font-size:10pt;">During the six months ended June 30, 2013, the Company issued a total of 2,644,622 shares of its common stock upon the exercise of stock options, pursuant to restricted stock grants and pursuant to purchases under the 2010 ESPP. During the six months ended June 30, 2012, the Company issued a total of 973,056 shares of its common stock upon the exercise of stock options, pursuant to restricted stock grants and pursuant to purchases under the 2010 ESPP. Cash received from the exercise of stock options and purchases through the 2010 ESPP during the six months ended June 30, 2013 and June 30, 2012 was approximately $49.6 million and $4.7 million, respectively, and is included within the financing activities section of the consolidated statements of cash flows.</div><div style="line-height:120%;text-align:left;font-size:10pt;"> </div><div style="line-height:120%;text-align:justify;text-indent:18px;font-size:10pt;">At June 30, 2013, there were an aggregate of 4,793,759 shares of common stock reserved for future issuance under the 2010 ESPP and for future grants under the Company's 2013 stock incentive plan.</div></div>falsefalsefalsenonnum:textBlockItemTypenaThe 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.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 false0Stock-Based CompensationfalseStock-Based CompensationUnKnownUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.themedicinescompany.com/role/StockBasedCompensation12