| Component: (Network and Table) | |
|---|---|
| Network | 00400 - Statement - Consolidated Statements of Cash Flows (http://www.insmed.com/role/StatementConsolidatedStatementsOfCashFlows)  | 
| Table | (Implied) | 
| Reporting Entity [Axis] | 0001104506 (http://www.sec.gov/CIK) | 
| Consolidated Statements of Cash Flows | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31  | 2015-01-01 - 2015-12-31  | 2014-01-01 - 2014-12-31  | |
Consolidated Statements of Cash Flows  | |||
Operating activities  | |||
Net loss  | (176,273,000)   | (118,183,000)   | (79,159,000)   | 
Adjustments to reconcile net loss to net cash used in operating activities:  | |||
Depreciation and amortization  | |||
Stock based compensation expense  | |||
Loss on sale of asset, net  | |||
Amortization of debt issuance costs  | |||
Accrual of the end of term charge on the debt  | |||
Changes in operating assets and liabilities:  | |||
Prepaid expenses and other assets  | (  | (  | |
Accounts payable  | (  | ||
Accrued expenses and other  | |||
Net cash used in operating activities  | (  | (  | (  | 
Investing activities  | |||
Purchase of fixed assets  | (  | (  | (  | 
Proceeds from sale of asset  | |||
Net cash used in investing activities  | (  | (  | (  | 
Financing activities  | |||
Payments on capital lease obligations  | (  | ||
Proceeds from issuance of debt  | |||
Proceeds from issuance of common stock  | |||
Proceeds from exercise of stock options  | |||
Payment of debt issuance costs  | (  | (  | (  | 
Net cash provided by financing activities  | |||
Effect of exchange rates on cash and cash equivalents  | (  | ||
Net (decrease) increase in cash and cash equivalents  | (  | ||
Cash and cash equivalents at beginning of period  | 282,876,000    | ||
Cash and cash equivalents at end of period  | 162,591,000    | 282,876,000    | 159,226,000    | 
Supplemental disclosures of cash flow information:  | |||
Cash paid for interest  | |||
Cash (paid) received for taxes, net  | (  | ||