Document_and_Entity_Informatio
Document and Entity Information (USD $) | 12 Months Ended | ||
In Thousands, except Share data, unless otherwise specified | Dec. 31, 2013 | Feb. 14, 2014 | Jun. 30, 2013 |
Entity Information [Line Items] | ' | ' | ' |
Document Type | '10-K | ' | ' |
Amendment Flag | 'false | ' | ' |
Document Period End Date | 31-Dec-13 | ' | ' |
Document Fiscal Year Focus | '2013 | ' | ' |
Document Fiscal Period Focus | 'FY | ' | ' |
Trading Symbol | 'DXCM | ' | ' |
Entity Registrant Name | 'DEXCOM INC | ' | ' |
Entity Central Index Key | '0001093557 | ' | ' |
Current Fiscal Year End Date | '--12-31 | ' | ' |
Entity Well-known Seasoned Issuer | 'Yes | ' | ' |
Entity Current Reporting Status | 'Yes | ' | ' |
Entity Voluntary Filers | 'No | ' | ' |
Entity Filer Category | 'Large Accelerated Filer | ' | ' |
Entity Common Stock, Shares Outstanding | ' | 72,810,396 | ' |
Entity Public Float | ' | ' | $1,564,116,891 |
Consolidated_Balance_Sheets
Consolidated Balance Sheets (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Current assets: | ' | ' |
Cash and cash equivalents | $43.20 | $8.10 |
Short-term marketable securities, available-for-sale | 11.4 | 40.6 |
Accounts receivable, net | 26.1 | 19.5 |
Inventory | 9 | 7.4 |
Prepaid and other current assets | 3.4 | 2 |
Total current assets | 93.1 | 77.6 |
Property and equipment, net | 20.7 | 18.9 |
Restricted cash | 1 | 1 |
Intangible assets, net | 3.6 | 4.2 |
Goodwill | 3.2 | 3.2 |
Other assets | 0.9 | 1.1 |
Total assets | 122.5 | 106 |
Current liabilities: | ' | ' |
Accounts payable and accrued liabilities | 14.1 | 8.7 |
Accrued payroll and related expenses | 15.1 | 9.2 |
Secured Debt, Current | 2.2 | 0.2 |
Current portion of deferred revenue | 0.7 | 1.4 |
Total current liabilities | 32.1 | 19.5 |
Other liabilities | 1.7 | 2.1 |
Secured Long-term Debt, Noncurrent | 4.6 | 6.8 |
Long-term portion of deferred revenue | 0 | 0.6 |
Total liabilities | 38.4 | 29 |
Commitments and contingencies (Note 4) | ' | ' |
Stockholders' equity: | ' | ' |
Preferred stock, $0.001 par value, 5.0 shares authorized; no shares issued and outstanding at December 31, 2013 and December 31, 2012, respectively | 0 | 0 |
Common stock, $0.001 par value, 100.0 authorized; 72.8 and 72.5 issued and outstanding, respectively, at December 31, 2013; and 69.7 and 69.5 shares issued and outstanding, respectively, at December 31, 2012 | 0.1 | 0.1 |
Additional paid-in capital | 559.5 | 522.6 |
Accumulated other comprehensive loss | -0.1 | -0.1 |
Accumulated deficit | -475.4 | -445.6 |
Total stockholders' equity | 84.1 | 77 |
Total liabilities and stockholders' equity | $122.50 | $106 |
Consolidated_Balance_Sheets_Pa
Consolidated Balance Sheets (Parenthetical) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
Statement of Financial Position [Abstract] | ' | ' |
Preferred stock, par value (in usd per share) | $0.00 | $0.00 |
Preferred stock, shares authorized (in shares) | 5,000,000 | 5,000,000 |
Preferred stock, shares issued (in shares) | 0 | 0 |
Preferred stock, shares outstanding (in shares) | 0 | 0 |
Common stock, par value (in usd per share) | $0.00 | $0.00 |
Common stock, shares authorized (in shares) | 100,000,000 | 100,000,000 |
Common stock, shares issued (in shares) | 72,800,000 | 69,700,000 |
Common stock, shares outstanding (in shares) | 72,500,000 | 69,500,000 |
Consolidated_Statements_of_Ope
Consolidated Statements of Operations (USD $) | 12 Months Ended | ||
In Millions, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Product revenue | $157.10 | $93 | $65.90 |
Development grant and other revenue | 2.9 | 6.9 | 10.4 |
Total revenue | 160 | 99.9 | 76.3 |
Product cost of sales | 58.1 | 48.3 | 36.6 |
Development and other cost of sales | 1.8 | 5 | 3.8 |
Total cost of sales | 59.9 | 53.3 | 40.4 |
Gross profit | 100.1 | 46.6 | 35.9 |
Operating expenses | ' | ' | ' |
Research and development | 44.8 | 38.3 | 29.6 |
Selling, general and administrative | 84.2 | 64 | 51.1 |
Total operating expenses | 129 | 102.3 | 80.7 |
Operating loss | -28.9 | -55.7 | -44.8 |
Interest and other income | 0 | 0.1 | 0.1 |
Interest expense | -0.9 | -0.2 | 0 |
Loss before income taxes | -29.8 | -55.8 | -44.7 |
Net tax benefit (expense) | 0 | 1.3 | 0 |
Net loss | ($29.80) | ($54.50) | ($44.70) |
Basic and diluted net loss per share | ($0.42) | ($0.79) | ($0.68) |
Shares used to compute basic and diluted net loss per share | 71.1 | 68.7 | 65.6 |
Consolidated_Statements_of_Com
Consolidated Statements of Comprehensive Loss (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Net loss | ($29.80) | ($54.50) | ($44.70) |
Unrealized gain (loss) on short-term available-for-sale marketable securities | 0 | 0 | 0 |
Foreign currency translation gain (loss) | 0 | 0 | -0.1 |
Comprehensive loss | ($29.80) | ($54.50) | ($44.80) |
CONSOLIDATED_STATEMENTS_OF_STO
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (USD $) | Total | May 2011 [Member] | Common stock [Member] | Common stock [Member] | Additional paid-in capital [Member] | Additional paid-in capital [Member] | Accumulated other comprehensive income (loss) [Member] | Accumulated deficit [Member] |
In Millions | USD ($) | USD ($) | May 2011 [Member] | USD ($) | May 2011 [Member] | USD ($) | USD ($) | |
Balance at Dec. 31, 2010 | $61 | ' | $0.10 | ' | $407.40 | ' | ($0.10) | ($346.40) |
Balance, shares at Dec. 31, 2010 | ' | ' | 62.1 | ' | ' | ' | ' | ' |
Issuance of common stock under equity incentive plans | 2.2 | ' | ' | ' | 2.2 | ' | ' | ' |
Issuance of common stock under equity incentive plans, shares | ' | ' | 0.6 | ' | ' | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan | 1.3 | ' | ' | ' | 1.3 | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan, shares | ' | ' | 0.1 | ' | ' | ' | ' | ' |
Share-based compensation for employee stock options and award grants | 13.5 | ' | ' | ' | 13.5 | ' | ' | ' |
Net loss | -44.7 | ' | ' | ' | ' | ' | ' | -44.7 |
Balance at Dec. 31, 2011 | 104.5 | ' | 0.1 | ' | 495.6 | ' | -0.1 | -391.1 |
Balance, shares at Dec. 31, 2011 | ' | ' | 67.5 | ' | ' | ' | ' | ' |
Issuance of common stock under equity incentive plans | 2.1 | ' | ' | ' | 2.1 | ' | ' | ' |
Issuance of common stock under equity incentive plans, shares | ' | ' | 1.3 | ' | ' | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan | 1.5 | ' | ' | ' | 1.5 | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan, shares | ' | ' | 0.2 | ' | ' | ' | ' | ' |
Issuance of common stock for SweetSpot acquisition and milestone | 5 | ' | ' | ' | 5 | ' | ' | ' |
Issuance of common stock for SweetSpot acquisition and milestone, shares | ' | ' | 0.5 | ' | ' | ' | ' | ' |
Share-based compensation for employee stock options and award grants | 18.4 | ' | ' | ' | 18.4 | ' | ' | ' |
Net loss | -54.5 | ' | ' | ' | ' | ' | ' | -54.5 |
Balance at Dec. 31, 2012 | 77 | ' | 0.1 | ' | 522.6 | ' | -0.1 | -445.6 |
Balance, shares at Dec. 31, 2012 | ' | ' | 69.5 | ' | ' | ' | ' | ' |
Issuance of common stock under equity incentive plans | 10.2 | ' | ' | ' | 10.2 | ' | ' | ' |
Issuance of common stock under equity incentive plans, shares | ' | ' | 2.8 | ' | ' | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan | 1.9 | ' | ' | ' | 1.9 | ' | ' | ' |
Issuance of common stock for Employee Stock Purchase Plan, shares | ' | ' | 0.2 | ' | ' | ' | ' | ' |
Share-based compensation for employee stock options and award grants | 24.8 | ' | ' | ' | 24.8 | ' | ' | ' |
Net loss | -29.8 | ' | ' | ' | ' | ' | ' | -29.8 |
Balance at Dec. 31, 2013 | $84.10 | ' | $0.10 | ' | $559.50 | ' | ($0.10) | ($475.40) |
Balance, shares at Dec. 31, 2013 | ' | ' | 72.5 | ' | ' | ' | ' | ' |
Consolidated_Statements_of_Cas
Consolidated Statements of Cash Flows (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Interest Paid | $0.50 | $0 | $0 |
Operating activities | ' | ' | ' |
Net loss | -29.8 | -54.5 | -44.7 |
Adjustments to reconcile net loss to cash used in operating activities: | ' | ' | ' |
Depreciation and amortization | 7 | 6.6 | 3.8 |
Share-based compensation | 24.6 | 18.4 | 13.5 |
Accretion and amortization related to investments, net | 0.3 | 0.8 | 0.9 |
Amortization of Financing Costs | 0.4 | 0.1 | 0 |
Release of valuation allowance against deferred tax assets | 0 | -1.3 | 0 |
Change in fair value of contingent consideration | 2.5 | 0.7 | 0 |
Other Noncash Expense | 0.2 | 0 | 0 |
Changes in operating assets and liabilities: | ' | ' | ' |
Accounts receivable | -6.5 | -7 | -5.9 |
Inventory | -1.6 | 0.7 | -0.1 |
Prepaid and other assets | -1.4 | -0.8 | 1.2 |
Restricted cash | 0 | -0.1 | 0.8 |
Accounts payable and accrued liabilities | 2.4 | 0.3 | 1 |
Accrued payroll and related expenses | 5.8 | 2.4 | 1.1 |
Deferred revenue | -1.2 | 0.1 | -1.6 |
Deferred rent and other liabilities | -0.3 | 0.5 | -0.1 |
Net cash used in operating activities | 2.4 | -33.1 | -30.1 |
Investing activities | ' | ' | ' |
Purchase of available-for-sale marketable securities | -16.3 | -66.4 | -102.7 |
Proceeds from the maturity of available-for-sale marketable securities | 45.1 | 104.3 | 64.3 |
Purchase of property and equipment | -7.9 | -9.5 | -8 |
Net cash provided by (used in) investing activities | 20.9 | 28.4 | -46.4 |
Financing activities | ' | ' | ' |
Net proceeds from issuance of common stock | 12 | 3.6 | 74.7 |
Proceeds from Issuance of Long-term Debt | 0 | 6.6 | 0 |
Repayments of Long-term Debt | -0.2 | 0 | 0 |
Repayments of Secured Debt | 0 | 0 | -0.5 |
Net cash provided by financing activities | 11.8 | 10.2 | 74.2 |
Increase in cash and cash equivalents | 35.1 | 5.5 | -2.3 |
Cash and cash equivalents, beginning of period | 8.1 | 2.6 | 4.9 |
Cash and cash equivalents, ending of period | 43.2 | 8.1 | 2.6 |
Supplemental disclosure of non-cash transactions | ' | ' | ' |
Issuance of common stock in connection with acquisition and contingent consideration | $0 | $6.10 | $0 |
Organization_and_Summary_of_Si
Organization and Summary of Significant Accounting Policies | 12 Months Ended | |||||||||||||||
Dec. 31, 2013 | ||||||||||||||||
Disclosure Organization And Summary Of Significant Accounting Policies Additional Information [Abstract] | ' | |||||||||||||||
Organization and Summary of Significant Accounting Policies | ' | |||||||||||||||
Organization and Summary of Significant Accounting Policies | ||||||||||||||||
Organization and Business | ||||||||||||||||
DexCom, Inc. is a medical device company focused on the design, development and commercialization of continuous glucose monitoring (“CGM”) systems for ambulatory use by people with diabetes and by healthcare providers in the hospital for the treatment of people with and without diabetes. Unless the context requires otherwise, the terms “we,” “us,” “our,” the “company,” or “DexCom” refer to DexCom, Inc. and its subsidiaries. | ||||||||||||||||
Basis of Presentation | ||||||||||||||||
We have incurred operating losses since our inception and have an accumulated deficit of $475.4 million at December 31, 2013. As of December 31, 2013, we had available cash, cash equivalents and short-term marketable securities totaling $54.6 million, excluding $1.0 million of restricted cash, and working capital of $61.0 million. Our ability to transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. If events or circumstances occur such that we do not meet our operating plan as expected, we may be required to reduce planned increases in compensation related expenses or other operating expenses which could have an adverse impact on our ability to achieve our intended business objectives. We believe our working capital resources will be sufficient to fund our operations through at least December 31, 2014. | ||||||||||||||||
Reclassifications | ||||||||||||||||
Certain reclassifications have been made to the prior period consolidated financial statements and notes to conform to the current year presentation. During 2013, we began classifying patent costs within general and administrative expense. Historically, we had included such costs in research and development. We reclassified amounts previously reported in the 2012 and 2011 Consolidated Statements of Operations to conform to current classification totaling $1.2 million and $1.2 million, respectively. | ||||||||||||||||
Principles of Consolidation | ||||||||||||||||
The consolidated financial statements include the accounts of DexCom and our wholly owned subsidiaries, DexCom AB and SweetSpot Diabetes Care, Inc. (“SweetSpot”). All significant intercompany balances and transactions have been eliminated in consolidation. | ||||||||||||||||
Segment Reporting | ||||||||||||||||
An operating segment is identified as a component of a business that has discrete financial information available, and one for which the chief operating decision maker must decide the level of resource allocation. In addition, the guidance for segment reporting indicates certain quantitative thresholds. The operations of SweetSpot, our subsidiary, does not meet the definition of an operating segment and are currently not material, but may become material in the future. We currently consider our operations to be, and manage our business as, one operating segment. | ||||||||||||||||
Use of Estimates | ||||||||||||||||
The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates. Significant estimates include excess or obsolete inventories, valuation of inventory, warranty accruals, clinical trial expenses, allowance for bad debt, accounting for the SweetSpot acquisition including contingent consideration, and share-based compensation expense. | ||||||||||||||||
Cash and Cash Equivalents | ||||||||||||||||
We invest our excess cash in bank deposits, money market accounts, and debt securities. We consider all highly liquid investments with a maturity of 90 days or less at the time of purchase to be cash equivalents. | ||||||||||||||||
Short-Term Marketable Securities | ||||||||||||||||
We have classified our short-term marketable securities as “available-for-sale” and carry them at fair value with unrealized gains and losses, if any, reported as a separate component of stockholders' equity and included in comprehensive loss. Realized gains and losses are calculated using the specific identification method and recorded as interest income. | ||||||||||||||||
Accounts Receivable | ||||||||||||||||
We grant credit to various customers in the normal course of business. We maintain an allowance for doubtful accounts for potential credit losses. Uncollectible accounts are written-off against the allowance after appropriate collection efforts have been exhausted and when it is deemed that a customer account is uncollectible. Generally, receivable balances greater than one year past due are deemed uncollectable. | ||||||||||||||||
Fair Value of Financial Instruments | ||||||||||||||||
Financial instruments, including cash and cash equivalents, prepaid expenses, accounts payable and accrued liabilities, are carried at cost, which we believe approximates fair value given their short-term nature. | ||||||||||||||||
Letters of Credit | ||||||||||||||||
At December 31, 2013 and 2012, we had irrevocable letters of credit outstanding with a commercial bank for approximately $0.7 million and $0.7 million, respectively, securing our facility leases. The letters of credit are secured by cash equivalents and an equal amount of restricted cash has been separately disclosed in the accompanying consolidated balance sheets. | ||||||||||||||||
Concentration of Credit Risk | ||||||||||||||||
Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash, cash equivalents, short-term investment securities, and accounts receivable. We limit our exposure to credit loss by placing our cash with high credit quality financial institutions. We have established guidelines relative to diversification of our cash and investment securities and their maturities that are intended to secure safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates and changes in our operations and financial position. The following table summarizes customers who accounted for 10% or more of net accounts receivable: | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Customer A | 19 | % | 12 | % | ||||||||||||
Customer B | 17 | % | 20 | % | ||||||||||||
Property and Equipment | ||||||||||||||||
Property and equipment is stated at cost and depreciated over the estimated useful lives of the assets, generally three years for computer equipment, four years for machinery and equipment, and five years for furniture and fixtures, using the straight-line method. Leasehold improvements are stated at cost and amortized over the shorter of the estimated useful lives of the assets or the lease term. | ||||||||||||||||
Impairment of Long-Lived Assets | ||||||||||||||||
We will record impairment losses on long-lived assets used in operations when events and circumstances indicate that assets might be impaired and the undiscounted cash flows estimated to be generated by those assets are less than the carrying amount of those assets. We have not experienced any material impairment losses on assets used in operations. | ||||||||||||||||
Share-Based Compensation | ||||||||||||||||
We recorded $24.6 million, $18.4 million and $13.5 million in share-based compensation expense during the twelve months ended December 31, 2013, 2012 and 2011, respectively. At December 31, 2013, unrecognized estimated compensation costs related to unvested stock options and restricted stock units totaled $42.8 million and are expected to be recognized through 2017. We issued performance restricted stock units (the “Performance Awards”) in connection with our acquisition of SweetSpot in March 2012. The performance targets for these Performance Awards are tied to earnings before interest, taxes, depreciation and amortization (“EBITDA”) for fiscal years 2013 and 2014. We recognize expense for the Performance Awards when it is probable that the EBITDA targets will be met. At December 31, 2013, we had $1.3 million of unrecognized share-based compensation expense related to the Performance Awards. We use the grant date fair value of our common stock for valuing restricted stock unit awards. Our determination of the fair value of share-based payment awards on the date of grant is affected by our stock price. Compensation costs will be adjusted for future changes in estimated forfeitures. | ||||||||||||||||
Revenue Recognition | ||||||||||||||||
We sell our durable systems and disposable units through a direct sales force in the United States and through distribution arrangements in the United States, Canada, Australia, New Zealand, and in portions of Europe, the Middle East and Latin America. Components are individually priced and can be purchased separately or together. We receive payment directly from customers who use our products, as well as from distributors, organizations and third-party payors. Our durable system includes a reusable transmitter, a receiver, a power cord, data management software and a USB cable. Disposable sensors for use with the durable system are sold separately in packages of four. The initial durable system price is not dependent upon the purchase of any amount of disposable sensors. | ||||||||||||||||
Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable, and collectability is reasonably assured. Revenue on product sales is generally recognized upon shipment, which is when title and the risk of loss have been transferred to the customer and there are no other post shipment obligations. With respect to customers who directly pay for products, the products are generally paid for at the time of shipment using a customer’s credit card and do not include customer acceptance provisions. We recognize revenue from contracted insurance payors based on the contracted rate. For non-contracted insurance payors, we obtain prior authorization from the payor and recognize revenue based on the estimated collectible amount and historical experience. We also receive a prescription or statement of medical necessity and, for insurance reimbursement customers, an assignment of benefits prior to shipment. | ||||||||||||||||
We provide a “30-day money back guarantee” program whereby customers who purchase a durable system and a package of four disposable sensors may return the durable system for any reason within thirty days of purchase and receive a full refund of their purchase price. We accrue for estimated returns, refunds and rebates by reducing revenues and establishing a liability account at the time of shipment based on historical experience. | ||||||||||||||||
We have entered into distribution agreements with Edgepark, Byram and other distributors that allow the distributors to sell our durable systems and disposable units. Revenue on product sales to distributors is generally recognized at the time of shipment, which is when title and risk of loss have been transferred to the distributor and there are no other post-shipment obligations. Revenue is recognized based on contracted prices and invoices are either paid by check following the issuance of a purchase order or letter of credit, or they are paid by wire at the time of placing the order. Terms of distributor orders are generally Freight on Board (“FOB”) shipping point (Free Carrier (“FCA”) shipping point for international orders). Distributors do not have rights of return per their distribution agreement outside of our standard warranty. The distributors typically have a limited time frame to notify us of any missing, damaged, defective or non-conforming products. For any such products, we shall either, at our option, replace the portion of defective or non-conforming product at no additional cost to the distributor or cancel the order and refund any portion of the price paid to us at that time for the sale in question. | ||||||||||||||||
We shipped product directly to certain distributors’ customers and recognized $23.4 million, $15.9 million and $14.5 million in revenue, which represents 15%, 16% and 19% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. With respect to other distributors that stock inventory of our product and fulfill orders from their inventory, we shipped product to these distributors and recognized $70.5 million, $30.7 million and $17.7 million in revenue from these arrangements, which represents 44%, 31% and 23% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. We monitor shipments to, and on-hand inventory levels of, these distributors, and at December 31, 2013, these distributors had limited amounts of our product in their inventory. | ||||||||||||||||
One of our distributors, Byram, accounted for $24.3 million and $9.6 million in revenue, which represents 15% and 9% of our total revenues for the twelve months ended December 31, 2013 and 2012. Revenues from Byram in 2011 were immaterial. Another one of our distributors, Edgepark, accounted for $23.1 million, $14.8 million and $15.5 million in revenue, which represents 14%, 15% and 20% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. | ||||||||||||||||
We have collaborative license and development arrangements with strategic partners for the development and commercialization of products utilizing our technologies. The terms of these agreements typically include multiple deliverables by us (for example, license rights, provision of research and development services and manufacture of clinical materials) in exchange for consideration to us of some combination of non-refundable license fees, funding of research and development activities, payments based upon achievement of clinical development milestones and royalties in the form of a designated percentage of product sales or profits. With the exception of royalties, these types of consideration are classified as development grant and other revenue in our consolidated statements of operations and are generally recognized over the service period except for substantive milestone payments, which are generally recognized when the milestone is achieved. In determining whether each milestone is substantive, we considered whether the consideration earned by achieving the milestone should (i) be commensurate with either (a) our performance to achieve the milestone or (b) the enhancement of value of the item delivered as a result of a specific outcome resulting from our performance to achieve the milestone, (ii) relate solely to past performance and (iii) be reasonable relative to all deliverables and payment terms in the arrangement. We recognize royalties in the period in which we obtain the royalty report, which is necessary to determine the amount of royalties we are entitled to receive. | ||||||||||||||||
Non-refundable license fees are recognized as revenue when we have a contractual right to receive such payment, the contract price is fixed or determinable, the collection of the resulting receivable is reasonably assured and we have no further performance obligations under the license agreement. Multiple element arrangements, such as license, development and other multiple element service arrangements, are analyzed to determine how the arrangement consideration should be allocated among the separate units of accounting, or whether they must be accounted for as a single unit of accounting. | ||||||||||||||||
For transactions containing multiple element arrangements, we consider deliverables as separate units of accounting and recognize deliverables as revenue upon delivery only if (i) the deliverable has standalone value and (ii) if the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is probable and substantially controlled by us. We allocate consideration to the separate units of accounting using the relative selling price method, in which allocation of consideration is based on vendor-specific objective evidence (“VSOE”) if available, third-party evidence (“TPE”), or if VSOE and TPE are not available, management’s best estimate of a standalone selling price for elements. | ||||||||||||||||
We use judgment in estimating the value allocable to the deliverables in an agreement based on our estimate of the fair value or relative selling price attributable to the related deliverables and the consideration from such an agreement is typically recognized as product revenue or development grant and other revenue. For arrangements that are accounted for as a single unit of accounting, total payments under the arrangement are recognized as revenue on a straight-line basis over the period we expect to complete our performance obligations. We review the estimated period of our performance obligations on a periodic basis and update the recognition period as appropriate. The cumulative amount of revenue earned is limited to the cumulative amount of payments we are entitled to as of the period ending date. | ||||||||||||||||
If we cannot reasonably estimate when our performance obligation either ceases or becomes inconsequential, then revenue is deferred until we can reasonably estimate when the performance obligation ceases or becomes inconsequential. Revenue is then recognized over the remaining estimated period of performance. Deferred revenue amounts are classified as current liabilities to the extent that revenue is expected to be recognized within one year. | ||||||||||||||||
Significant management judgment is required in determining the level of effort required under an arrangement and the period over which we are expected to complete our performance obligations under an arrangement. | ||||||||||||||||
Warranty Accrual | ||||||||||||||||
Estimated warranty costs are recorded at the time of shipment. We estimate future warranty costs by analyzing historical warranty experience for the timing and amount of returned product, and these estimates are evaluated on at least a quarterly basis to determine the continued appropriateness of such assumptions. | ||||||||||||||||
Research and Development | ||||||||||||||||
All costs of research and development are expensed as incurred. Research and development expenses primarily include salaries, bonus and payroll related costs, overhead, part components, share-based compensation, and fees paid to consultants. | ||||||||||||||||
Foreign Currency | ||||||||||||||||
The financial statements of our non-U.S. subsidiary, whose functional currency is the Swedish Krona, are translated into U.S. dollars for financial reporting purposes. Assets and liabilities are translated at period-end exchange rates, and revenue and expense transactions are translated at average exchange rates for the period. Cumulative translation adjustments are recognized as part of comprehensive income and are included in accumulated other comprehensive income in the consolidated balance sheet. Gains and losses on transactions denominated in other than the functional currency are reflected in operations. To date the results of operations of this subsidiary and related translation adjustments have not been material in our consolidated results. | ||||||||||||||||
Comprehensive Loss | ||||||||||||||||
We report all components of comprehensive loss, including net loss, in the consolidated financial statements in the period in which they are recognized. Comprehensive loss is defined as the change in equity during a period from transactions and other events and circumstances from non-owner sources. Net loss and other comprehensive loss, including unrealized gains and losses on marketable securities and foreign currency translation adjustments, are reported, net of their related tax effect, to arrive at comprehensive loss. | ||||||||||||||||
Inventory | ||||||||||||||||
Inventory is valued at the lower of cost or market value on a part-by-part basis that approximates first in, first out. We make adjustments to reduce the cost of inventory to its net realizable value, if required, for estimated excess, obsolete and potential scrapped inventories. Factors influencing these adjustments include inventories on hand and on order compared to estimated future usage and sales for existing and new products, as well as judgments regarding quality control testing data, and assumptions about the likelihood of scrap and obsolescence. Once written down the adjustments are considered permanent and are not reversed until the related inventory is sold or disposed. | ||||||||||||||||
Deferred Rent | ||||||||||||||||
Rent expense is recorded on a straight-line basis over the term of the lease. The difference between rent expense accrued and amounts paid under the lease agreement is recorded as deferred rent in the accompanying consolidated balance sheets. | ||||||||||||||||
Income Taxes | ||||||||||||||||
In July 2006, the FASB issued authoritative guidance for accounting for uncertainty in income taxes, which prescribes a recognition threshold and measurement process for recording in the consolidated financial statements uncertain tax positions taken or expected to be taken in a tax return. Additionally, the accounting standard provides guidance on the derecognition, classification, accounting in interim periods and disclosure requirements for uncertain tax positions. | ||||||||||||||||
We file income tax returns in the United States and in various state jurisdictions with varying statutes of limitations. Due to net operating losses incurred, our income tax returns from inception to date are subject to examination by taxing authorities. Our policy is to recognize interest expense and penalties related to income tax matters as a component of income tax expense. As of December 31, 2013, we had no interest or penalties accrued for uncertain tax positions. | ||||||||||||||||
Fair Value Measurements | ||||||||||||||||
The fair value hierarchy described by the authoritative guidance for fair value measurements is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value and include the following: | ||||||||||||||||
Level 1—Quoted prices in active markets for identical assets or liabilities. | ||||||||||||||||
Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. | ||||||||||||||||
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. | ||||||||||||||||
We base the fair value of our Level 1 financial instruments that are in active markets using quoted market prices for identical instruments. Our Level 1 financial instruments include certificates of deposit. | ||||||||||||||||
We obtain the fair value of our Level 2 financial instruments, which are not in active markets, from a primary professional pricing source using quoted market prices for identical or comparable instruments, rather than direct observations of quoted prices in active markets. Fair value obtained from this professional pricing source can also be based on pricing models whereby all significant observable inputs, including maturity dates, issue dates, settlement date, benchmark yields, reported trades, broker-dealer quotes, issue spreads, benchmark securities, bids, offers or other market related data, are observable or can be derived from, or corroborated by, observable market data for substantially the full term of the asset. | ||||||||||||||||
We validate the quoted market prices provided by our primary pricing service by comparing the fair values of our Level 2 marketable securities portfolio balance provided by our primary pricing service against the fair values of our Level 2 marketable securities portfolio balance provided by our investment managers. | ||||||||||||||||
Certain contingent consideration liabilities are classified within Level 3 of the fair value hierarchy because they use unobservable inputs. For those liabilities, fair value is determined using a probability-weighted discounted cash flow model, the significant inputs, which include the probability and expected timing of achievement and the discount rate, are not observable in the market. | ||||||||||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2013 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 28.7 | $ | — | $ | 28.7 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 8.9 | — | 8.9 | ||||||||||||
Corporate debt | — | 2.5 | — | 2.5 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 11.4 | $ | — | $ | 11.4 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 4.2 | $ | 4.2 | ||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2012 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 4.5 | $ | — | $ | 4.5 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 31.8 | — | 31.8 | ||||||||||||
Corporate debt | — | 8 | — | 8 | ||||||||||||
Commercial paper | — | 0.8 | — | 0.8 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 40.6 | $ | — | $ | 40.6 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 1.7 | $ | 1.7 | ||||||||
The book values of cash equivalents, short-term marketable securities, accounts receivable and accounts payable approximate their respective fair values due to the short-term nature of these instruments. The book value of long-term debt approximates fair value due to the recent issuance. | ||||||||||||||||
Contingent Consideration Liability | ||||||||||||||||
In connection with the acquisition of SweetSpot in March 2012, at the closing of the acquisition, we agreed to issue up to an additional 357,176 shares of our common stock upon the achievement of certain specified milestones, which is classified as contingent consideration. The fair value of the contingent consideration at the closing of $2.2 million was determined using a probability-weighted discounted cash flow model, the significant inputs of which are not observable in the market. The key assumptions in applying this approach are the interest rate and the estimated probabilities and timing assigned to the milestones being achieved. During 2012, approximately $1.1 million related to the contingent consideration was earned and paid through the issuance of 89,296 shares of our common stock, with up to 267,880 shares of our common stock that may still be issued upon the achievement of remaining performance milestones. Changes in fair value are recorded in the consolidated statements of operations as research and development expense since the milestones are related to development activities. | ||||||||||||||||
The following table sets forth the change in the estimated fair value for our liabilities measured on a recurring basis using significant unobservable inputs (Level 3) (in millions): | ||||||||||||||||
Twelve Months Ended | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Fair value measurement at the beginning of period | $ | 1.7 | $ | — | ||||||||||||
Contingent consideration recorded upon acquisition | — | 2.2 | ||||||||||||||
Changes in fair value measurement included in operating expenses | 2.5 | 0.6 | ||||||||||||||
Contingent consideration settled | — | (1.1 | ) | |||||||||||||
Fair value measurement at end of period | $ | 4.2 | $ | 1.7 | ||||||||||||
Impairment of Goodwill and Intangible Assets | ||||||||||||||||
We test goodwill and intangible assets with indefinite lives for impairment on an annual basis. Also, between annual tests we test for impairment if events and circumstances indicate it is more likely than not that the fair value is less than the carrying value. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in market capitalization, a significant adverse change in legal factors, business climate or operational performance of the business and an adverse action or assessment by a regulator. | ||||||||||||||||
Recent Accounting Guidance | ||||||||||||||||
Effective January 1, 2013, we adopted the Financial Accounting Standards Board ("FASB") authoritative guidance for Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income ("AOCI"), which requires an entity to report, in one place, information about reclassifications out of AOCI and to present reclassifications by component when reporting changes in AOCI balances. Other than additional disclosure requirements, the adoption of this guidance did not have a material impact on our consolidated financial statements. Reclassifications out of AOCI for the twelve months ended December 31, 2013, 2012 and 2011were not material. | ||||||||||||||||
In July 2013, the FASB issued authoritative guidance for Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, which provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. We intend to adopt this guidance at the beginning of our first quarter of fiscal year 2014, and do not believe the adoption of this guidance will have a material impact on our consolidated financial statements or related financial statement disclosures. |
Net_Loss_Per_Common_Share
Net Loss Per Common Share | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Earnings Per Share [Abstract] | ' | ||||||||
Net Loss Per Common Share | ' | ||||||||
Net Loss Per Common Share | |||||||||
Basic net loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding for the period, without consideration for common stock equivalents. Diluted net loss per share attributable to common stockholders is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common share equivalents outstanding for the period determined using the treasury-stock method. For purposes of this calculation, options and unvested restricted stock units are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. | |||||||||
Historical outstanding anti-dilutive securities not included in diluted net loss per share attributable to common stockholders calculation (in millions): | |||||||||
Years Ended December 31, | |||||||||
2013 | 2012 | 2011 | |||||||
Options outstanding to purchase common stock | 5.8 | 7.4 | 7.8 | ||||||
Unvested restricted stock units | 3.6 | 3 | 1.9 | ||||||
Total | 9.4 | 10.4 | 9.7 | ||||||
Financial_Statement_Details
Financial Statement Details | 12 Months Ended | |||||||||||||||
Dec. 31, 2013 | ||||||||||||||||
Disclosure of Financial Statement Details [Abstract] | ' | |||||||||||||||
Financial Statement Details | ' | |||||||||||||||
Financial Statement Details (in millions) | ||||||||||||||||
Short Term Marketable Securities, Available for Sale | ||||||||||||||||
Short term marketable securities, consisting solely of debt securities with contractual maturities of less than one year were as follows: | ||||||||||||||||
31-Dec-13 | ||||||||||||||||
Amortized | Gross | Gross | Estimated | |||||||||||||
Cost | Unrealized | Unrealized | Market | |||||||||||||
Gains | Losses | Value | ||||||||||||||
U.S. government agencies | $ | 8.9 | $ | — | $ | — | $ | 8.9 | ||||||||
Corporate debt | 2.5 | — | — | 2.5 | ||||||||||||
Total | $ | 11.4 | $ | — | $ | — | $ | 11.4 | ||||||||
December 31, 2012 | ||||||||||||||||
Amortized | Gross | Gross | Estimated | |||||||||||||
Cost | Unrealized | Unrealized | Market | |||||||||||||
Gains | Losses | Value | ||||||||||||||
U.S. government agencies | $ | 31.8 | $ | — | $ | — | $ | 31.8 | ||||||||
Corporate debt | 8 | — | — | 8 | ||||||||||||
Commercial paper | 0.8 | — | — | 0.8 | ||||||||||||
Total | $ | 40.6 | $ | — | $ | — | $ | 40.6 | ||||||||
Accounts Receivable | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accounts receivable | $ | 28.8 | $ | 20.7 | ||||||||||||
Less allowance for doubtful accounts, sales returns and discounts | (2.7 | ) | (1.2 | ) | ||||||||||||
Total | $ | 26.1 | $ | 19.5 | ||||||||||||
Inventory | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Raw materials | $ | 4.8 | $ | 2.5 | ||||||||||||
Work-in-process | 0.3 | 0.4 | ||||||||||||||
Finished goods | 3.9 | 4.5 | ||||||||||||||
Total | $ | 9 | $ | 7.4 | ||||||||||||
Property and Equipment | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Furniture and fixtures | $ | 2.6 | $ | 2.5 | ||||||||||||
Computer equipment | 15.2 | 12 | ||||||||||||||
Machinery and equipment | 19 | 16.2 | ||||||||||||||
Leasehold improvements | 10.5 | 9.3 | ||||||||||||||
Total | 47.3 | 40 | ||||||||||||||
Accumulated depreciation and amortization | (26.6 | ) | (21.1 | ) | ||||||||||||
Property and equipment, net | $ | 20.7 | $ | 18.9 | ||||||||||||
Depreciation and amortization expense related to property and equipment for the twelve months ended December 31, 2013, 2012, and 2011 was $6.4 million, $6.1 million, and $3.8 million, respectively. | ||||||||||||||||
Goodwill and Intangible Assets | ||||||||||||||||
Goodwill and intangible assets as of December 31, 2013 consisted of the following (in millions, except months): | ||||||||||||||||
Weighted-Average | Gross | Accumulated | Intangible Assets, net | |||||||||||||
Amortization Period | Amount | Amortization | ||||||||||||||
(in months) | ||||||||||||||||
Intangible assets subject to amortization | ||||||||||||||||
Developed technology | 109 | $ | 3.2 | $ | (0.7 | ) | $ | 2.5 | ||||||||
Customer-related intangible | 70 | 0.6 | (0.2 | ) | 0.4 | |||||||||||
Covenants not-to-compete | 70 | 0.6 | (0.2 | ) | 0.4 | |||||||||||
Total | $ | 4.4 | $ | (1.1 | ) | $ | 3.3 | |||||||||
Intangible assets not subject to amortization | ||||||||||||||||
In-process research and development | 0.2 | |||||||||||||||
Trademarks and trade names | 0.1 | |||||||||||||||
Goodwill | 3.2 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Goodwill and intangible assets as of December 31, 2012 consisted of the following (in millions, except months): | ||||||||||||||||
Weighted-Average | Gross | Accumulated | Intangible Assets, net | |||||||||||||
Amortization Period | Amount | Amortization | ||||||||||||||
(in months) | ||||||||||||||||
Intangible assets subject to amortization | ||||||||||||||||
Developed technology | 109 | $ | 3.2 | $ | (0.3 | ) | $ | 2.9 | ||||||||
Customer-related intangible | 70 | 0.6 | (0.1 | ) | 0.5 | |||||||||||
Covenants not-to-compete | 70 | 0.6 | (0.1 | ) | 0.5 | |||||||||||
Total | $ | 4.4 | $ | (0.5 | ) | $ | 3.9 | |||||||||
Intangible assets not subject to amortization | ||||||||||||||||
In-process research and development | 0.2 | |||||||||||||||
Trademarks and trade names | 0.1 | |||||||||||||||
Goodwill | 3.2 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Total expense related to amortization of intangible assets was $0.6 million and $0.5 million for the twelve months ended December 31, 2013 and 2012, compared to none for 2011. | ||||||||||||||||
The following table sets forth the total future amortization expense related to intangible assets subject to amortization as of December 31, 2013: | ||||||||||||||||
Fiscal Year Ending | ||||||||||||||||
2014 | $ | 0.6 | ||||||||||||||
2015 | 0.7 | |||||||||||||||
2016 | 0.5 | |||||||||||||||
2017 | 0.5 | |||||||||||||||
2018 | 0.3 | |||||||||||||||
Thereafter through 2021 | 0.9 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Accounts Payable and Accrued Liabilities | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accounts payable trade | $ | 4.2 | $ | 3.9 | ||||||||||||
Accrued tax, audit, and legal fees | 1.2 | 0.7 | ||||||||||||||
Clinical trials | 0.3 | 0.1 | ||||||||||||||
Accrued other including warranty | 4.8 | 2.8 | ||||||||||||||
Acquisition-related liabilities | 3.6 | 1.2 | ||||||||||||||
Total | $ | 14.1 | $ | 8.7 | ||||||||||||
Accrued Payroll and Related Expenses | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accrued paid time off | $ | 2.7 | $ | 2.3 | ||||||||||||
Accrued wages, bonus and taxes | 11.3 | 6.1 | ||||||||||||||
Other accrued employee benefits | 1.1 | 0.8 | ||||||||||||||
Total | $ | 15.1 | $ | 9.2 | ||||||||||||
Accrued Warranty | ||||||||||||||||
Years Ended December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Beginning balance | $ | 0.3 | $ | 0.3 | ||||||||||||
Charges to costs and expenses | 4.1 | 1.9 | ||||||||||||||
Costs incurred | (3.5 | ) | (1.9 | ) | ||||||||||||
Ending balance | $ | 0.9 | $ | 0.3 | ||||||||||||
Commitments_and_Contingencies
Commitments and Contingencies | 12 Months Ended | |||
Dec. 31, 2013 | ||||
Commitments and Contingencies Disclosure [Abstract] | ' | |||
Commitments and Contingencies | ' | |||
Commitments and Contingencies | ||||
Long-Term Debt | ||||
In November 2012, we entered into a loan and security agreement (the “Loan Agreement”) that provides for (i) a $15.0 million revolving line of credit and (ii) a total term loan of up to $20.0 million (the "Term Loan"), in both cases, to be used for general corporate purposes. The borrowings under the Loan Agreement are collateralized by a first priority security interest in substantially all of our assets with a negative pledge on our intellectual property. | ||||
The revolving line of credit is an interest-only financing that bears an interest rate equal to the prime rate plus 0.5% and requires repayment of principal at the maturity date of November 2015. Available funds, which were $15.0 million as of December 31, 2013, up to the borrowing base of 80% of eligible accounts receivables, under the revolving line of credit can be drawn at any time, and repaid funds can be redrawn. No amounts have been drawn against the revolving line of credit. | ||||
Per the Loan Agreement, $7.0 million was advanced under the Term Loan at the funding date in November 2012, and initially provided up to $13.0 million in additional funds available upon our request from June 1, 2013 to September 30, 2013 (the "Draw Period"). In August 2013, the Loan Agreement was amended to change the Draw Period for the additional funds under the Term Loan to January 1, 2014 to March 31, 2014. The Term Loan bears a fixed interest rate equal to the three-year treasury rate at the time of advance plus 6.94% and requires payment of interest only for the first year and amortized payments of interest and principal thereafter through the maturity date of November 2016. | ||||
The aggregate debt issuance costs and fees incurred with respect to the issuance of the Loan Agreement were $1.1 million. These costs have been capitalized as debt issuance costs on our consolidated balance sheet as other assets. Fees related to the revolving line of credit are being amortized through the maturity date of November 2015. Issuance costs and fees related to the term loan are being amortized through the maturity date of November 2016 using the effective interest method. As of December 31, 2013, the remaining unamortized issuance costs and fees totaled $0.6 million. Principal repayment obligations under the Loan Agreement as of December 31, 2013 were as follows (in millions): | ||||
Fiscal Year Ending | ||||
2014 | $ | 2.2 | ||
2015 | 2.3 | |||
2016 | 2.3 | |||
Total | $ | 6.8 | ||
Leases | ||||
In April 2006, we entered into an office lease agreement for facilities located in San Diego, California. In August 2010, we entered into a First Amendment to Office Lease (the “Lease Amendment”) with respect to facilities in the buildings at 6340 Sequence Drive and 6310 Sequence Drive, each in San Diego, California (the “Buildings”). Under the Lease Amendment, we leased additional space in the Buildings. The lease term for the Buildings extends through November 2016 and we have an option to renew the lease upon the expiration of the initial term for an additional five years. These facility leases have annual rental increases ranging from approximately 2.5% to 4.0%. The difference between the straight-line expense over the term of the lease and actual amounts paid are recorded as deferred rent. In September 2008, our subsidiary in Sweden entered into a three-year lease for a small shared office space, which was renewed for a three-year term and has a quarterly adjustment clause for rent to increase or decrease in proportion to changes in consumer prices. In July 2012, our subsidiary SweetSpot entered into a five-year lease for a small office space in a multi-tenant commercial building in Portland, Oregon. Rental obligations, excluding real estate taxes, operating costs, and tenant improvement allowances, under all lease agreements as of December 31, 2013 were as follows (in millions): | ||||
Fiscal Year Ending | ||||
2014 | $ | 2.7 | ||
2015 | 2.7 | |||
2016 | 2.6 | |||
Total | $ | 8 | ||
Total rent expense for the twelve months ended December 31, 2013, 2012 and 2011 was $3.0 million, $2.5 million and $2.6 million, respectively. | ||||
Litigation | ||||
On August 11, 2005, Abbott Diabetes Care, Inc. (“Abbott”) filed a patent infringement lawsuit against us in the United States District Court for the District of Delaware, seeking a declaratory judgment that our continuous glucose monitor infringes certain patents held by Abbott. In August 2005, we moved to dismiss these claims and filed requests for reexamination of the Abbott patents with the United States Patent and Trademark Office (the “Patent Office”) and by March 2006, the Patent Office ordered reexamination of each of the four patents originally asserted against us in the litigation. On June 27, 2006, Abbott amended its complaint to include three additional patents owned or licensed by Abbott which are allegedly infringed by our continuous glucose monitor. On August 18, 2006, the court granted our motion to stay the lawsuit pending reexamination by the Patent Office of each of the four patents originally asserted by Abbott, and the court dismissed one significant infringement claim. In approving the stay, the court also granted our motion to strike, or disallow, Abbott's amended complaint in which Abbott had sought to add three additional patents to the litigation. Subsequent to the court's August 18, 2006 order striking Abbott's amended complaint, Abbott filed a separate action in the U.S. District Court for the District of Delaware alleging patent infringement of the three additional patents it had sought to include in the litigation discussed above. On September 7, 2006, we filed a motion to strike Abbott's new complaint on the grounds that it is redundant of claims Abbott already improperly attempted to inject into the original case, and because the original case is now stayed, Abbott must wait until the court lifts that stay before it can properly ask the court to consider these claims. Alternatively, we asked the court to consolidate the new case with the original case and thereby stay the entirety of the case pending conclusion of the reexamination proceedings in the Patent Office. In February 2007, the Patent Office ordered reexamination of each of the three patents cited in this new lawsuit. On September 30, 2007, the court granted our motion to consolidate the cases and stay the entirety of the case pending conclusion of the reexamination proceedings in the Patent Office relating to all seven patents asserted against us. | ||||
On December 31, 2013, Abbott filed a motion with the district court seeking to lift the stay of the two consolidated cases. We filed an opposition to the motion on January 17, 2014, and Abbott filed a reply brief in support of its motion on January 29, 2014. The court has taken the motion under submission, although it is not clear when it will issue a ruling. On December 31, 2013, Abbott filed a new complaint for patent infringement. In that complaint, Abbott alleges that our products, including our SEVEN PLUS and G4 PLATINUM continuous glucose monitoring systems, infringe claims of United States Patent No. 8,175,673. We filed an answer to the complaint on January 23, 2014. On January 28, 2014, we also filed a motion to consolidate the newest case (case no. 1-13-cv-02105-GMS) with the first two cases (case nos.1:05-cv-00509-GMS and 1:06-cv-00514-GMS), and to stay the three cases pending conclusion of all pending reexamination proceedings in the Patent Office. | ||||
In connection with this litigation, two of the seven patents that are the subject of the litigation have reexamination requests on appeal at the Patent Office. Certificates of Reexamination were issued for four of the seven patents and a Notice of Intent to Issue a Reexamination Certificate was issued for the seventh patent in August 2013. In many of these reexamination proceedings, Abbott filed responses with the Patent Office seeking claim construction to differentiate certain claims from the prior art we presented, seeking to amend certain claims to overcome the prior art we presented, canceling claims and/or seeking to add new claims. | ||||
In addition, since 2008, Abbott has copied claims from certain of our applications, and stated that it may seek to provoke an interference with certain of our pending applications in the Patent Office. If interference is declared and Abbott prevails in the interference, we would lose certain patent rights to the subject matter defined in the interference. Also since 2008, Abbott has filed 38 reexamination requests seeking to invalidate 31 of our patents. Four of the 38 reexamination requests are in various stages at the Patent Office, and 33 have been issued a Certificate of Reexamination (one Reexamination Request was denied). We have filed responses with the Patent Office seeking claim construction to differentiate certain claims from the prior art presented in the reexaminations, seeking to amend certain claims to overcome the prior art presented in the reexaminations, canceling claims and/or seeking to add new claims. It is possible that the Patent Office may determine that some or all of the claims of our patents subject to the reexamination are invalid. Additionally, Abbott has filed an Opposition to six of our European patents, one of which was not defended and one of which was revoked. | ||||
Although it is our position that Abbott's assertions of infringement have no merit, and that the potential interference and reexamination requests by Abbott have no merit, neither the outcome of the litigation nor the amount and range of potential fees associated with the litigation, potential interference or reexamination requests can be assessed, and as of December 31, 2013, no amounts have been accrued. | ||||
From time to time, we are subject to various claims and suits arising out of the ordinary course of business, including commercial and employment related matters. We do not expect that the resolution of these matters would have a material adverse effect on our consolidated financial position. | ||||
Purchase Commitments | ||||
We are party to various purchase arrangements related to our manufacturing and development activities including materials used in our glucose monitoring systems. As of December 31, 2013, we had purchase commitments with vendors totaling $16.2 million due within one year. There are no material purchase commitments due beyond one year. |
Development_and_Other_Agreemen
Development and Other Agreements | 12 Months Ended |
Dec. 31, 2013 | |
Disclosure Development Agreements Additional Information [Abstract] | ' |
Development and Other Agreements | ' |
Development and Other Agreements | |
Edwards Lifesciences LLC | |
On November 10, 2008, and as amended on May 5, 2009, we entered into a Collaboration Agreement (the “Collaboration Agreement”) with Edwards Lifesciences LLC (“Edwards”). Pursuant to the Collaboration Agreement, we and Edwards agreed to develop jointly and to market an in-hospital automatic blood glucose monitoring system. Under the terms of the Collaboration Agreement, as amended, Edwards paid us an upfront fee of $13.0 million in November 2008. In addition, we received $10.0 million, in total, for product development from 2009 through 2010. We will also receive either a profit-sharing payment of up to 10% on the product’s gross profits, or a royalty of up to 6% of commercial sales of the product. The Collaboration Agreement provides Edwards with an exclusive license under our intellectual property to the critical care sector in the hospital market. Edwards will be responsible for global sales and marketing, and we will initially be responsible for manufacturing. Our development obligations under the Collaboration Agreement were completed in the fourth quarter of 2012, and there will no longer be any development grant and other revenue recognized in future periods related to consideration previously received under the Collaboration Agreement. We recorded $1.4 million and $2.1 million in development grant and other revenue related to consideration previously received under the Collaboration Agreement for development efforts for the twelve months ended December 31, 2012 and 2011. | |
Each of the milestones related to the Collaboration Agreement is considered to be substantive under the terms of the Collaboration Agreement and, at the outset of the agreement, we were entitled to receive up to $12.0 million in milestones related to regulatory approvals and manufacturing readiness, subject to reductions based on the timing of the receipt of approvals. However, we do not expect to receive all or any of such milestones due to regulatory and joint development delays. We did not recognize any consideration for milestones related to the Collaboration Agreement for the twelve months ended December 31, 2013, 2012 and 2011. | |
Roche Diagnostics Operations, Inc. | |
On November 1, 2011, we entered into a non-exclusive Research and Development Agreement (the “Roche Agreement”) with Roche Diagnostics Operations, Inc. (“Roche”) to integrate a future generation of our continuous glucose monitoring technology with Roche’s next generation Accu-Chek insulin delivery system in the United States. On February 20, 2013, Roche provided us with notice that Roche was terminating the Roche Agreement in accordance with its terms. We received an initial payment of $0.5 million as a result of the execution of the Roche Agreement, and we received an additional $0.5 million upon agreement of a development and regulatory plan. We recorded $0.8 million and $0.2 million in development grant and other revenue related to consideration previously received for development efforts for the twelve months ended December 31, 2013 and 2012, compared to none for 2011. As a result of the termination of the Roche Agreement, we are no longer entitled to receive any further consideration for milestones or development activities pursuant to the Roche Agreement. | |
Tandem Diabetes Care, Inc. | |
On February 1, 2012, we entered into a non-exclusive Development and Commercialization Agreement (the “Tandem Agreement”) with Tandem Diabetes Care, Inc. (“Tandem”) to integrate a future generation of our continuous glucose monitoring technology with Tandem’s t:slim™ insulin delivery system in the United States. On January 4, 2013, the Tandem Agreement was amended to allow for the integration of our G4 PLATINUM system with Tandem's t:slim insulin delivery system in the United States. Under the terms of the Tandem Agreement, we are entitled to receive up to $1.0 million to offset certain development, clinical and regulatory expenses. We received an initial payment of $1.0 million as a result of the execution of the Tandem Agreement. We are also entitled to receive up to an additional $2.0 million upon the achievement of certain milestones related to regulatory submissions and approvals as set forth in the Tandem Agreement. Each of the milestones related to the Tandem Agreement is considered to be substantive. We did not recognize any consideration for milestones for the twelve months ended December 31, 2013 and 2012. We recorded $0.5 million and $0.3 million in development grant and other revenue related to consideration previously received for development efforts for the twelve months ended December 31, 2013 and 2012. | |
The Leona M. and Harry B Helmsley Charitable Trust | |
In July 2013, we were awarded a $4.0 million grant (the "Helmsley Grant") from the Leona M. and Harry B. Helmsley Charitable Trust (the "Helmsley Trust") to accelerate the development of the sixth generation of our advanced glucose-sensing technologies (the "Gen 6 Sensor"). The funding is milestone-based and is contingent upon our meeting specific development milestones related to the Gen 6 Sensor over the next several years. During the twelve months ended December 31, 2013, $0.5 million of the Helmsley Grant was received. Upon successful commercialization of our Gen 6 Sensor, we are obligated to either (1) make royalty payments based on a percentage of product sales of up to $2.0 million per year for four years, or (2) at our sole election, make a one-time $6.0 million royalty payment. The Helmsley Grant funds will offset research and development expense as incurred and earned. For the twelve months ended December 31, 2013, $0.5 million of Helmsley Grant funds was earned. |
Business_Combinations
Business Combinations | 12 Months Ended | |||||
Dec. 31, 2013 | ||||||
Business Combinations [Abstract] | ' | |||||
Business Combinations | ' | |||||
Business Combinations | ||||||
On February 21, 2012, we entered into an Agreement and Plan of Merger (the “Merger Agreement”) to acquire 100% of the common stock of SweetSpot. The merger was consummated on March 6, 2012 (the “Closing”). In accordance with the Merger Agreement, on the Closing, we issued 384,483 shares of our common stock having an aggregate value on the Closing of $3.9 million to the security holders of SweetSpot. The fair value of the contingent consideration at the Closing was determined to be $2.2 million using a probability-weighted discounted cash flow model with the key assumptions being the discount rate, the timing of expected achievement and the probability assigned to each milestone being achieved. During 2012, approximately $1.1 million related to the contingent consideration was earned and paid through the issuance of 89,296 shares of our common stock. We may also issue up to 267,880 shares of our common stock in milestone payments contingent upon the achievement of certain other performance milestones. We have not issued any shares of common stock for milestone payments in 2013. We incurred acquisition-related costs of $0.3 million during 2012, which are recorded as general and administrative expense. | ||||||
SweetSpot is a healthcare-focused information technology company with a platform for uploading and processing data from certain diabetes devices to advance the treatment of diabetes. SweetSpot specializes in turning raw output from certain devices into information for healthcare providers, individuals and researchers. Through our acquisition of SweetSpot, we have a software platform that enables our customers to aggregate and analyze data from certain diabetes devices and to share it with their healthcare providers. | ||||||
The acquisition of SweetSpot has been recorded using the acquisition method of accounting in accordance with the authoritative guidance for business combinations. The allocation of purchase price is based on our valuation of the fair value of tangible and intangible assets acquired and liabilities assumed as of the Closing. | ||||||
The purchase price is as follows (in millions): | ||||||
Market value of DexCom common stock issued on the Closing | $ | 3.9 | ||||
Fair value of contingent consideration | 2.2 | |||||
Total purchase price | $ | 6.1 | ||||
The following table summarizes the allocation of the purchase price. | ||||||
Estimated Fair Value | Estimated Useful Life in Months | |||||
(in millions) | ||||||
Net assumed liabilities | $ | (1.8 | ) | |||
Developed technology | 3.2 | 109 | ||||
In-process research and development | 0.2 | 51 | ||||
Trademarks and trade names | 0.1 | |||||
Customer-related intangible | 0.6 | 70 | ||||
Covenants not-to-compete | 0.6 | 70 | ||||
Goodwill | 3.2 | |||||
Total purchase price allocation | $ | 6.1 | ||||
Goodwill represents the excess of the purchase price over the fair value of tangible and identified intangible assets acquired. Goodwill and trademarks and trade names are not amortized, but are subject to review for impairment on at least an annual basis. Acquired developed technology represents the fair value assigned to technology assets that we acquired that have been completed at the date of acquisition. The acquired technology is capitalized as intangible assets and amortized over their estimated useful lives. Acquired in-process research and development ("IPR&D") represents the fair value assigned to research and development assets that we acquired that have not been completed at the date of acquisition. The acquired IPR&D is capitalized as an intangible asset and tested for impairment at least annually until commercialization, after which time the IPR&D will be amortized over its estimated useful life. Acquired customer-related intangibles and covenant not-to-compete are capitalized as intangible assets and amortized over their estimated useful lives. |
Income_Taxes
Income Taxes | 12 Months Ended | |||||||||
Dec. 31, 2013 | ||||||||||
Income Taxes | ' | |||||||||
7. Income Taxes | ||||||||||
We have recorded a net tax benefit of $12,000 and $1.3 million for the years ended December 31, 2013 and 2012, respectively. A tax benefit was recorded in 2012 related to the release of a portion of the valuation allowance against our deferred tax assets as a result of the merger with SweetSpot, partially offset by foreign income taxes. The tax expense in 2013 is primarily related to foreign income taxes and state minimum taxes. | ||||||||||
At December 31, 2013, we had federal and state tax net operating loss carryforwards of approximately $384.5 million and $273.0 million, respectively. The federal and state tax loss carryforwards will begin to expire in 2019 and 2014, respectively, unless previously utilized. We also had federal and state research and development tax credit carryforwards of approximately $6.4 million and $9.0 million, respectively. The federal research and development tax credit will begin to expire in 2020, unless previously utilized. | ||||||||||
Utilization of net operating losses and credit carryforwards are subject to an annual limitation due to ownership change limitations provided by Section 382 and 383 of the Internal Revenue Code of 1986, as amended, and similar state provisions. An ownership change limitation occurred as a result of the stock offering completed in February 2009. The limitation will likely result in approximately $2.1 million of U.S. income tax credits that will expire unused. The related deferred tax assets have been removed from the components of our deferred tax assets as summarized below. The tax benefits related to the remaining federal and state net operating losses and tax credit carryforwards may be further limited or lost if future cumulative changes in ownership exceed 50% within any three-year period. | ||||||||||
Significant components of our deferred tax assets as of December 31, 2013 and 2012 are shown below (in millions). A valuation allowance of approximately $164.7 million has been established as of December 31, 2013 to offset the deferred tax assets, as realization of such assets is uncertain. As a result of the acquisition of SweetSpot, we recorded an income tax benefit of approximately $1.3 million related to a release of a portion of the valuation allowance against our deferred tax assets. We maintain a deferred tax liability related to indefinite lived intangible assets that is not netted against deferred tax assets, as reversal of the taxable temporary difference cannot serve as a source of income for realization of the deferred tax assets, because the deferred tax liability will not reverse until the asset is sold or written down due to impairment. | ||||||||||
December 31, | ||||||||||
2013 | 2012 | |||||||||
Deferred tax assets: | ||||||||||
Net operating loss carryforwards | $ | 132.8 | $ | 123.5 | ||||||
Capitalized research and development expenses | 7.2 | 8.1 | ||||||||
Tax credits | 7.3 | 5.5 | ||||||||
Share-based compensation | 12.2 | 10.1 | ||||||||
Fixed and intangible assets | 1.1 | 1 | ||||||||
Other, net | 5.4 | 4.5 | ||||||||
Total gross deferred tax assets | 166 | 152.7 | ||||||||
Less: valuation allowance | (164.7 | ) | (151.3 | ) | ||||||
Deferred tax liability related to acquired intangibles assets | (1.4 | ) | (1.5 | ) | ||||||
Net deferred tax asset (liability) | (0.1 | ) | (0.1 | ) | ||||||
We recognize windfall tax benefits associated with the exercise of share-based compensation directly to stockholders’ equity only when realized. Accordingly, deferred tax assets are not recognized for net operating loss carryforwards resulting from windfall tax benefits occurring from January 1, 2006 onward. At December 31, 2013, deferred tax assets do not include $17.1 million of excess tax benefits from share-based compensation. | ||||||||||
The reconciliation between our effective tax rate on income (loss) from continuing operations and the statutory rate is as follows: | ||||||||||
December 31, | ||||||||||
2013 | 2012 | 2011 | ||||||||
Income taxes (benefit) at statutory rates | 35 | % | 35 | % | 35 | % | ||||
State income tax, net of federal benefit | 2.7 | % | 2.74 | % | 2.16 | % | ||||
Permanent items | (3.64 | )% | (0.84 | )% | (0.41 | )% | ||||
Research and development credits | 6.17 | % | 1.43 | % | 3.93 | % | ||||
Stock and officers compensation | (2.23 | )% | (3.01 | )% | (2.37 | )% | ||||
Rate change | 7.11 | % | (2.13 | )% | 0.29 | % | ||||
Other | 0.08 | % | (1.15 | )% | (2.02 | )% | ||||
Change in valuation allowance | (45.15 | )% | (29.76 | )% | (36.65 | )% | ||||
0.04 | % | 2.28 | % | (0.07 | )% | |||||
The following table summarizes the activity related to our gross unrecognized tax benefits (in millions): | ||||||||||
Balance at January 1, 2011 | $ | 3.6 | ||||||||
Increases related to current year tax positions | 0.8 | |||||||||
Balance at December 31, 2011 | 4.4 | |||||||||
Increases related to current year tax positions | 0.5 | |||||||||
Decreases due to statute of limitation expiration | (0.1 | ) | ||||||||
Balance at December 31, 2012 | 4.8 | |||||||||
Adjustments related to prior year tax positions | 0.5 | |||||||||
Increases related to current year tax positions | 0.9 | |||||||||
Balance at December 31, 2013 | $ | 6.2 | ||||||||
Due to the valuation allowance recorded against our deferred tax assets, none of the total unrecognized tax benefits as of December 31, 2013 would reduce our annual effective tax rate if recognized. Interest and penalties are classified as a component of income tax expense. Due to net operating losses incurred, tax years from 1999 to 2012 remain open to examination by the major taxing jurisdictions to which we are subject. | ||||||||||
On September 13, 2013, the U.S. Treasury Department released final income tax regulations on the deduction and capitalization of expenditures related to tangible property. These final regulations apply to tax years beginning on or after January 1, 2014, and may be adopted in earlier years. We do not intend to early adopt the tax treatment of expenditures to improve tangible property and the capitalization of inherently facilitative costs to acquire tangible property as of January 1, 2013. The tangible property regulations will require us to make additional tax accounting method changes as of January 1, 2014; however we do not anticipate the impact of these changes to be material to our consolidated financial statements. |
Employee_Benefit_Plans
Employee Benefit Plans | 12 Months Ended | |||||||||||||
Dec. 31, 2013 | ||||||||||||||
Employee Benefit Plans | ' | |||||||||||||
. Employee Benefit Plans | ||||||||||||||
401(k) Plan | ||||||||||||||
We have a defined contribution 401(k) retirement plan (the “401(k) Plan”) covering substantially all employees that meet certain age requirements. Employees may contribute up to 90% of their compensation per year (subject to a maximum limit by federal tax law). Under the 401(k) Plan, we may elect to match a discretionary percentage of contributions. No such matching contributions have been made to the 401(k) Plan since its inception. | ||||||||||||||
Employee Stock Purchase Plan | ||||||||||||||
The Employee Stock Purchase Plan (“ESPP”) permits our eligible employees to purchase shares of common stock, at semi-annual intervals, through periodic payroll deductions. Payroll deductions may not exceed 10% of the participant’s cash compensation subject to certain limitations, and the purchase price will not be less than 0.85 of the lower of the fair market value of the stock at either the beginning of the applicable “Offering Period” or the Purchase Date. Each Offering Period is twelve months, with new Offering Periods commencing every six months on the dates of February 1 and August 1 of each year. Each Offering Period consists of two (2) six month purchase periods (each a “Purchase Period”) during which payroll deductions of the participants are accumulated under the ESPP. The last business day of each Purchase Period is referred to as the “Purchase Date.” Purchase Dates are every six months on the dates of January 31 and July 31. Annually in January of each year, subject to Board discretion and certain limitations, shares reserved for the ESPP will automatically be increased by a number of shares equal to 1% of the total number of issued and outstanding shares of our common stock at the preceding year end. On January 31, 2011, July 29, 2011, January 31, 2012, July 31, 2012, January 31, 2013 and July 31, 2013 we issued 77,466, 54,408, 68,960, 89,114, 93,246 and 106,415, respectively, shares of common stock under the ESPP. | ||||||||||||||
Equity Incentive Plans | ||||||||||||||
In 2005, we adopted the 2005 Equity Incentive Plan, as amended (the “2005 Plan”), which replaced the 1999 Incentive Stock Plan and provides for the grant of incentive and nonstatutory stock options, restricted stock, stock bonuses, stock appreciation rights, and restricted stock units to employees, directors or consultants of the Company. Shares reserved include all shares that were available under the 1999 Incentive Stock Plan on the day it was terminated. Options generally vest over four years and expire ten years from the date of grant. In addition, incentive stock options may not be granted at a price less than the 100% of the fair market value on the date of grant. The term of the 2005 Plan is scheduled to end in March 2015. Annually in January of each year, subject to Board discretion and certain limitations, shares reserved for the 2005 Plan will automatically be increased by a number of shares equal to 3% of the total number of issued and outstanding shares of our common stock during the preceding year end. | ||||||||||||||
A summary of our stock option activity, and related information for the year ended December 31, 2013 is as follows (in millions except weighted-average exercise price and weighted-average remaining contractual term): | ||||||||||||||
Number of | Weighted- | Weighted- | Aggregate Intrinsic | |||||||||||
Shares | Average | Average | Value | |||||||||||
Exercise | Remaining | |||||||||||||
Price | Contractual | |||||||||||||
Term | ||||||||||||||
(years) | ||||||||||||||
Outstanding at December 31, 2012 | 7.4 | $ | 7.67 | |||||||||||
Exercised | (1.5 | ) | 6.64 | |||||||||||
Forfeited | — | 8.18 | ||||||||||||
Outstanding at December 31, 2013 | 5.9 | $ | 7.94 | 4.3 | $ | 160.3 | ||||||||
Exercisable at December 31, 2013 | 5.8 | $ | 7.91 | 4.3 | $ | 159.1 | ||||||||
The total intrinsic value of options exercised as of the date of exercise and total fair value of options vested was as follows (in millions): | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Intrinsic value of options exercised | $ | 29.8 | $ | 2.7 | $ | 3 | ||||||||
Fair value of options vested | $ | 1.3 | $ | 3.7 | $ | 5.7 | ||||||||
We define in-the-money options at December 31, 2013 as options that had exercise prices that were lower than the $35.41 closing market price of our common stock at that date. The aggregate intrinsic value of options outstanding at December 31, 2013 is calculated as the difference between the exercise price of the underlying options and the market price of our common stock for the 5.9 million options that were in-the-money at that date. There were 5.8 million in-the-money options exercisable at December 31, 2013. | ||||||||||||||
The following table sets forth a summary of our nonvested stock options and activity as of and for the year ended December 31, 2013: | ||||||||||||||
Shares | Weighted Average | |||||||||||||
Grant Date | ||||||||||||||
Fair Value | ||||||||||||||
(in millions) | ||||||||||||||
Nonvested at December 31, 2012 | 0.3 | $ | 5.52 | |||||||||||
Vested | (0.2 | ) | 5.95 | |||||||||||
Forfeited | — | 5 | ||||||||||||
Nonvested at December 31, 2013 | 0.1 | $ | 4.6 | |||||||||||
Valuation and expense information | ||||||||||||||
The following table summarizes share-based compensation expense related to employee stock options, restricted stock units and employee stock purchases for the years ended December 31, 2013, 2012 and 2011 were allocated as follows (in millions): | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Cost of sales | $ | 2.6 | $ | 2.1 | $ | 1.4 | ||||||||
Research and development | 8.5 | 6.2 | 4.6 | |||||||||||
Selling, general and administrative | 13.5 | 10.1 | 7.5 | |||||||||||
Share-based compensation expense included in operating expenses | $ | 24.6 | $ | 18.4 | $ | 13.5 | ||||||||
We estimated the fair value of each option grant and ESPP purchase rights on the date of grant using the Black-Scholes option pricing model with the below assumptions. | ||||||||||||||
Options: | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Risk free interest rate | n/a | 1.2 | % | 1.5 – 2.5 | ||||||||||
Dividend yield | n/a | — | % | — | % | |||||||||
Expected volatility of the Company’s stock | n/a | 0.7 | 0.68 – 0.69 | |||||||||||
Expected life (in years) | n/a | 6.1 | 6.1 | |||||||||||
ESPP: | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Risk free interest rate | 0.13 – 0.17 | 0.11 – 0.19 | 0.21 – 0.26 | |||||||||||
Dividend yield | — | % | — | % | — | % | ||||||||
Expected volatility of the Company’s stock | 0.30 – 0.39 | 0.39 – 0.70 | 0.31 – 0.49 | |||||||||||
Expected life (in years) | 1 | 1 | 1 | |||||||||||
The risk-free interest rate assumption is based upon observed interest rates appropriate for the expected life of our employee stock options and stock purchase plan. The dividend yield assumption is based on our history and expectation of dividend payouts. | ||||||||||||||
As share-based compensation expense recognized in the consolidated statement of operations for fiscal 2013, 2012 and 2011 is based on awards ultimately expected to vest, it has been reduced for estimated forfeitures. Authoritative guidance for share-based payment requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Forfeitures were estimated based on historical experience. | ||||||||||||||
Restricted Stock Units (RSUs) | ||||||||||||||
RSU awards typically vest annually over one to four years, and vesting is subject to continued employment. The RSUs had a weighted-average grant date fair value of $17.29, $10.58 and $13.99 per share for the years ended December 31, 2013, 2012 and 2011, respectively. The total fair value of RSUs vested was $17.5 million, $11.8 million and $2.9 million for the years ended December 31, 2013, 2012 and 2011, respectively. | ||||||||||||||
The following table sets forth a summary of our RSU activity as of and for the year ended December 31, 2013 (in millions except weighted average grant date fair value): | ||||||||||||||
Shares | Weighted Average | Aggregate | ||||||||||||
Grant Date | Intrinsic Value | |||||||||||||
Fair Value | ||||||||||||||
Nonvested at December 31, 2012 | 3 | $ | 11.6 | |||||||||||
Granted | 2.4 | 17.29 | ||||||||||||
Vested | (1.5 | ) | 11.97 | |||||||||||
Forfeited | (0.3 | ) | 12.6 | |||||||||||
Nonvested at December 31, 2013 | 3.6 | $ | 15.13 | $ | 126.9 | |||||||||
Reserved Shares | ||||||||||||||
We have reserved shares of common stock for future issuance as follows (in millions): | ||||||||||||||
December 31, | ||||||||||||||
2013 | 2012 | |||||||||||||
Stock options and awards under our plans: | ||||||||||||||
Stock options granted and outstanding | 5.9 | 7.4 | ||||||||||||
Unvested RSUs | 3.6 | 3 | ||||||||||||
Reserved for future grant | 0.5 | 0.5 | ||||||||||||
Employee Stock Purchase Plan | 2.6 | 2.1 | ||||||||||||
Total | 12.6 | 13 | ||||||||||||
Quarterly_Financial_Informatio
Quarterly Financial Information | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Quarterly Financial Information | ' | ||||||||||||||||
. Quarterly Financial Information (Unaudited) | |||||||||||||||||
The following is a summary of the quarterly results of operations for the years ended December 31, 2013 and 2012 (in millions except per share data): | |||||||||||||||||
For the Three Months Ended | |||||||||||||||||
December 31 | September 30 | June 30 | March 31 | ||||||||||||||
Year ended December 31, 2013 | |||||||||||||||||
Revenues | $ | 51.7 | $ | 42.9 | $ | 35.8 | $ | 29.6 | |||||||||
Gross profit | 34.1 | 27.6 | 21.9 | 16.5 | |||||||||||||
Total operating expenses | 36.4 | 33.4 | 31.8 | 27.4 | |||||||||||||
Net loss | (2.6 | ) | (6.0 | ) | (10.1 | ) | (11.1 | ) | |||||||||
Basic and diluted net loss per share | $ | (0.04 | ) | $ | (0.08 | ) | $ | (0.14 | ) | $ | (0.16 | ) | |||||
Year ended December 31, 2012 | |||||||||||||||||
Revenues (a) | $ | 33.3 | $ | 23.1 | $ | 23.5 | $ | 20.1 | |||||||||
Gross profit (a) | 17.5 | 8.4 | 11.2 | 9.4 | |||||||||||||
Total operating expenses | 25.9 | 25.7 | 25.9 | 24.8 | |||||||||||||
Net loss (a) | (8.5 | ) | (17.3 | ) | (14.7 | ) | (14.1 | ) | |||||||||
Basic and diluted net loss per share | $ | (0.12 | ) | $ | (0.25 | ) | $ | (0.21 | ) | $ | (0.21 | ) | |||||
(a) | The sum of the four quarters may not agree to the year total due to rounding within a quarter. |
Valuation_and_Qualifying_Accou
Valuation and Qualifying Accounts | 12 Months Ended | |||
Dec. 31, 2013 | ||||
VALUATION AND QUALIFYING ACCOUNTS | ' | |||
SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS | ||||
For the Years Ended December 31, 2013, 2012 and 2011 | ||||
(in millions) | ||||
Allowance for doubtful accounts | ||||
Balance December 31, 2010 | $ | 0.5 | ||
Provision for doubtful accounts | 0.7 | |||
Write-off and adjustments | (0.7 | ) | ||
Recoveries | 0.1 | |||
Balance December 31, 2011 | $ | 0.6 | ||
Allowance for doubtful accounts | ||||
Balance December 31, 2011 | $ | 0.6 | ||
Provision for doubtful accounts | 1.2 | |||
Write-off and adjustments | (0.7 | ) | ||
Recoveries | 0.1 | |||
Balance December 31, 2012 | $ | 1.2 | ||
Allowance for doubtful accounts | ||||
Balance December 31, 2012 | $ | 1.2 | ||
Provision for doubtful accounts | 2.7 | |||
Write-off and adjustments | (1.4 | ) | ||
Recoveries | 0.1 | |||
Balance December 31, 2013 | $ | 2.6 | ||
Organization_and_Summary_of_Si1
Organization and Summary of Significant Accounting Policies (Policies) | 12 Months Ended | |||||||||||||||
Dec. 31, 2013 | ||||||||||||||||
Disclosure Organization And Summary Of Significant Accounting Policies Additional Information [Abstract] | ' | |||||||||||||||
Organization and Business | ' | |||||||||||||||
Organization and Business | ||||||||||||||||
DexCom, Inc. is a medical device company focused on the design, development and commercialization of continuous glucose monitoring (“CGM”) systems for ambulatory use by people with diabetes and by healthcare providers in the hospital for the treatment of people with and without diabetes. Unless the context requires otherwise, the terms “we,” “us,” “our,” the “company,” or “DexCom” refer to DexCom, Inc. and its subsidiaries. | ||||||||||||||||
Basis of Presentation | ' | |||||||||||||||
Basis of Presentation | ||||||||||||||||
We have incurred operating losses since our inception and have an accumulated deficit of $475.4 million at December 31, 2013. As of December 31, 2013, we had available cash, cash equivalents and short-term marketable securities totaling $54.6 million, excluding $1.0 million of restricted cash, and working capital of $61.0 million. Our ability to transition to attaining profitable operations is dependent upon achieving a level of revenues adequate to support our cost structure. If events or circumstances occur such that we do not meet our operating plan as expected, we may be required to reduce planned increases in compensation related expenses or other operating expenses which could have an adverse impact on our ability to achieve our intended business objectives. We believe our working capital resources will be sufficient to fund our operations through at least December 31, 2014. | ||||||||||||||||
Reclassification, Policy [Policy Text Block] | ' | |||||||||||||||
Reclassifications | ||||||||||||||||
Certain reclassifications have been made to the prior period consolidated financial statements and notes to conform to the current year presentation. | ||||||||||||||||
Principles of Consolidation | ' | |||||||||||||||
Principles of Consolidation | ||||||||||||||||
The consolidated financial statements include the accounts of DexCom and our wholly owned subsidiaries, DexCom AB and SweetSpot Diabetes Care, Inc. (“SweetSpot”). All significant intercompany balances and transactions have been eliminated in consolidation. | ||||||||||||||||
Segment Reporting | ' | |||||||||||||||
Segment Reporting | ||||||||||||||||
An operating segment is identified as a component of a business that has discrete financial information available, and one for which the chief operating decision maker must decide the level of resource allocation. In addition, the guidance for segment reporting indicates certain quantitative thresholds. The operations of SweetSpot, our subsidiary, does not meet the definition of an operating segment and are currently not material, but may become material in the future. We currently consider our operations to be, and manage our business as, one operating segment. | ||||||||||||||||
Use of Estimates | ' | |||||||||||||||
Use of Estimates | ||||||||||||||||
The preparation of consolidated financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from these estimates. Significant estimates include excess or obsolete inventories, valuation of inventory, warranty accruals, clinical trial expenses, allowance for bad debt, accounting for the SweetSpot acquisition including contingent consideration, and share-based compensation expense. | ||||||||||||||||
Cash and Cash Equivalents, Policy [Policy Text Block] | ' | |||||||||||||||
Cash and Cash Equivalents | ||||||||||||||||
We invest our excess cash in bank deposits, money market accounts, and debt securities. We consider all highly liquid investments with a maturity of 90 days or less at the time of purchase to be cash equivalents. | ||||||||||||||||
Marketable Securities, Available-for-sale Securities, Policy [Policy Text Block] | ' | |||||||||||||||
Short-Term Marketable Securities | ||||||||||||||||
We have classified our short-term marketable securities as “available-for-sale” and carry them at fair value with unrealized gains and losses, if any, reported as a separate component of stockholders' equity and included in comprehensive loss. Realized gains and losses are calculated using the specific identification method and recorded as interest income. | ||||||||||||||||
Receivables, Policy [Policy Text Block] | ' | |||||||||||||||
Accounts Receivable | ||||||||||||||||
We grant credit to various customers in the normal course of business. We maintain an allowance for doubtful accounts for potential credit losses. Uncollectible accounts are written-off against the allowance after appropriate collection efforts have been exhausted and when it is deemed that a customer account is uncollectible. Generally, receivable balances greater than one year past due are deemed uncollectable. | ||||||||||||||||
Fair Value of Financial Instruments, Policy [Policy Text Block] | ' | |||||||||||||||
Fair Value of Financial Instruments | ||||||||||||||||
Financial instruments, including cash and cash equivalents, prepaid expenses, accounts payable and accrued liabilities, are carried at cost, which we believe approximates fair value given their short-term nature. | ||||||||||||||||
Letters Of Credit Policy [Text Block] | ' | |||||||||||||||
Letters of Credit | ||||||||||||||||
At December 31, 2013 and 2012, we had irrevocable letters of credit outstanding with a commercial bank for approximately $0.7 million and $0.7 million, respectively, securing our facility leases. The letters of credit are secured by cash equivalents and an equal amount of restricted cash has been separately disclosed in the accompanying consolidated balance sheets. | ||||||||||||||||
Concentration Risk, Credit Risk, Policy [Policy Text Block] | ' | |||||||||||||||
Concentration of Credit Risk | ||||||||||||||||
Financial instruments which potentially subject us to concentrations of credit risk consist primarily of cash, cash equivalents, short-term investment securities, and accounts receivable. We limit our exposure to credit loss by placing our cash with high credit quality financial institutions. We have established guidelines relative to diversification of our cash and investment securities and their maturities that are intended to secure safety and liquidity. These guidelines are periodically reviewed and modified to take advantage of trends in yields and interest rates and changes in our operations and financial position. The following table summarizes customers who accounted for 10% or more of net accounts receivable: | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Customer A | 19 | % | 12 | % | ||||||||||||
Customer B | 17 | % | 20 | % | ||||||||||||
Property and Equipment | ' | |||||||||||||||
Property and Equipment | ||||||||||||||||
Property and equipment is stated at cost and depreciated over the estimated useful lives of the assets, generally three years for computer equipment, four years for machinery and equipment, and five years for furniture and fixtures, using the straight-line method. Leasehold improvements are stated at cost and amortized over the shorter of the estimated useful lives of the assets or the lease term. | ||||||||||||||||
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] | ' | |||||||||||||||
Impairment of Long-Lived Assets | ||||||||||||||||
We will record impairment losses on long-lived assets used in operations when events and circumstances indicate that assets might be impaired and the undiscounted cash flows estimated to be generated by those assets are less than the carrying amount of those assets. We have not experienced any material impairment losses on assets used in operations. | ||||||||||||||||
Share-Based Compensation | ' | |||||||||||||||
Share-Based Compensation | ||||||||||||||||
We recorded $24.6 million, $18.4 million and $13.5 million in share-based compensation expense during the twelve months ended December 31, 2013, 2012 and 2011, respectively. At December 31, 2013, unrecognized estimated compensation costs related to unvested stock options and restricted stock units totaled $42.8 million and are expected to be recognized through 2017. We issued performance restricted stock units (the “Performance Awards”) in connection with our acquisition of SweetSpot in March 2012. The performance targets for these Performance Awards are tied to earnings before interest, taxes, depreciation and amortization (“EBITDA”) for fiscal years 2013 and 2014. We recognize expense for the Performance Awards when it is probable that the EBITDA targets will be met. At December 31, 2013, we had $1.3 million of unrecognized share-based compensation expense related to the Performance Awards. We use the grant date fair value of our common stock for valuing restricted stock unit awards. Our determination of the fair value of share-based payment awards on the date of grant is affected by our stock price. Compensation costs will be adjusted for future changes in estimated forfeitures. | ||||||||||||||||
Revenue Recognition | ' | |||||||||||||||
Revenue Recognition | ||||||||||||||||
We sell our durable systems and disposable units through a direct sales force in the United States and through distribution arrangements in the United States, Canada, Australia, New Zealand, and in portions of Europe, the Middle East and Latin America. Components are individually priced and can be purchased separately or together. We receive payment directly from customers who use our products, as well as from distributors, organizations and third-party payors. Our durable system includes a reusable transmitter, a receiver, a power cord, data management software and a USB cable. Disposable sensors for use with the durable system are sold separately in packages of four. The initial durable system price is not dependent upon the purchase of any amount of disposable sensors. | ||||||||||||||||
Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the price is fixed or determinable, and collectability is reasonably assured. Revenue on product sales is generally recognized upon shipment, which is when title and the risk of loss have been transferred to the customer and there are no other post shipment obligations. With respect to customers who directly pay for products, the products are generally paid for at the time of shipment using a customer’s credit card and do not include customer acceptance provisions. We recognize revenue from contracted insurance payors based on the contracted rate. For non-contracted insurance payors, we obtain prior authorization from the payor and recognize revenue based on the estimated collectible amount and historical experience. We also receive a prescription or statement of medical necessity and, for insurance reimbursement customers, an assignment of benefits prior to shipment. | ||||||||||||||||
We provide a “30-day money back guarantee” program whereby customers who purchase a durable system and a package of four disposable sensors may return the durable system for any reason within thirty days of purchase and receive a full refund of their purchase price. We accrue for estimated returns, refunds and rebates by reducing revenues and establishing a liability account at the time of shipment based on historical experience. | ||||||||||||||||
We have entered into distribution agreements with Edgepark, Byram and other distributors that allow the distributors to sell our durable systems and disposable units. Revenue on product sales to distributors is generally recognized at the time of shipment, which is when title and risk of loss have been transferred to the distributor and there are no other post-shipment obligations. Revenue is recognized based on contracted prices and invoices are either paid by check following the issuance of a purchase order or letter of credit, or they are paid by wire at the time of placing the order. Terms of distributor orders are generally Freight on Board (“FOB”) shipping point (Free Carrier (“FCA”) shipping point for international orders). Distributors do not have rights of return per their distribution agreement outside of our standard warranty. The distributors typically have a limited time frame to notify us of any missing, damaged, defective or non-conforming products. For any such products, we shall either, at our option, replace the portion of defective or non-conforming product at no additional cost to the distributor or cancel the order and refund any portion of the price paid to us at that time for the sale in question. | ||||||||||||||||
We shipped product directly to certain distributors’ customers and recognized $23.4 million, $15.9 million and $14.5 million in revenue, which represents 15%, 16% and 19% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. With respect to other distributors that stock inventory of our product and fulfill orders from their inventory, we shipped product to these distributors and recognized $70.5 million, $30.7 million and $17.7 million in revenue from these arrangements, which represents 44%, 31% and 23% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. We monitor shipments to, and on-hand inventory levels of, these distributors, and at December 31, 2013, these distributors had limited amounts of our product in their inventory. | ||||||||||||||||
One of our distributors, Byram, accounted for $24.3 million and $9.6 million in revenue, which represents 15% and 9% of our total revenues for the twelve months ended December 31, 2013 and 2012. Revenues from Byram in 2011 were immaterial. Another one of our distributors, Edgepark, accounted for $23.1 million, $14.8 million and $15.5 million in revenue, which represents 14%, 15% and 20% of our total revenues for the twelve months ended December 31, 2013, 2012 and 2011, respectively. | ||||||||||||||||
We have collaborative license and development arrangements with strategic partners for the development and commercialization of products utilizing our technologies. The terms of these agreements typically include multiple deliverables by us (for example, license rights, provision of research and development services and manufacture of clinical materials) in exchange for consideration to us of some combination of non-refundable license fees, funding of research and development activities, payments based upon achievement of clinical development milestones and royalties in the form of a designated percentage of product sales or profits. With the exception of royalties, these types of consideration are classified as development grant and other revenue in our consolidated statements of operations and are generally recognized over the service period except for substantive milestone payments, which are generally recognized when the milestone is achieved. In determining whether each milestone is substantive, we considered whether the consideration earned by achieving the milestone should (i) be commensurate with either (a) our performance to achieve the milestone or (b) the enhancement of value of the item delivered as a result of a specific outcome resulting from our performance to achieve the milestone, (ii) relate solely to past performance and (iii) be reasonable relative to all deliverables and payment terms in the arrangement. We recognize royalties in the period in which we obtain the royalty report, which is necessary to determine the amount of royalties we are entitled to receive. | ||||||||||||||||
Non-refundable license fees are recognized as revenue when we have a contractual right to receive such payment, the contract price is fixed or determinable, the collection of the resulting receivable is reasonably assured and we have no further performance obligations under the license agreement. Multiple element arrangements, such as license, development and other multiple element service arrangements, are analyzed to determine how the arrangement consideration should be allocated among the separate units of accounting, or whether they must be accounted for as a single unit of accounting. | ||||||||||||||||
For transactions containing multiple element arrangements, we consider deliverables as separate units of accounting and recognize deliverables as revenue upon delivery only if (i) the deliverable has standalone value and (ii) if the arrangement includes a general right of return relative to the delivered item(s), delivery or performance of the undelivered item(s) is probable and substantially controlled by us. We allocate consideration to the separate units of accounting using the relative selling price method, in which allocation of consideration is based on vendor-specific objective evidence (“VSOE”) if available, third-party evidence (“TPE”), or if VSOE and TPE are not available, management’s best estimate of a standalone selling price for elements. | ||||||||||||||||
We use judgment in estimating the value allocable to the deliverables in an agreement based on our estimate of the fair value or relative selling price attributable to the related deliverables and the consideration from such an agreement is typically recognized as product revenue or development grant and other revenue. For arrangements that are accounted for as a single unit of accounting, total payments under the arrangement are recognized as revenue on a straight-line basis over the period we expect to complete our performance obligations. We review the estimated period of our performance obligations on a periodic basis and update the recognition period as appropriate. The cumulative amount of revenue earned is limited to the cumulative amount of payments we are entitled to as of the period ending date. | ||||||||||||||||
If we cannot reasonably estimate when our performance obligation either ceases or becomes inconsequential, then revenue is deferred until we can reasonably estimate when the performance obligation ceases or becomes inconsequential. Revenue is then recognized over the remaining estimated period of performance. Deferred revenue amounts are classified as current liabilities to the extent that revenue is expected to be recognized within one year. | ||||||||||||||||
Significant management judgment is required in determining the level of effort required under an arrangement and the period over which we are expected to complete our performance obligations under an arrangement. | ||||||||||||||||
Warranty Accrual | ' | |||||||||||||||
Warranty Accrual | ||||||||||||||||
Estimated warranty costs are recorded at the time of shipment. We estimate future warranty costs by analyzing historical warranty experience for the timing and amount of returned product, and these estimates are evaluated on at least a quarterly basis to determine the continued appropriateness of such assumptions. | ||||||||||||||||
Research and Development Expense, Policy [Policy Text Block] | ' | |||||||||||||||
Research and Development | ||||||||||||||||
All costs of research and development are expensed as incurred. Research and development expenses primarily include salaries, bonus and payroll related costs, overhead, part components, share-based compensation, and fees paid to consultants. | ||||||||||||||||
Foreign Currency | ' | |||||||||||||||
Foreign Currency | ||||||||||||||||
The financial statements of our non-U.S. subsidiary, whose functional currency is the Swedish Krona, are translated into U.S. dollars for financial reporting purposes. Assets and liabilities are translated at period-end exchange rates, and revenue and expense transactions are translated at average exchange rates for the period. Cumulative translation adjustments are recognized as part of comprehensive income and are included in accumulated other comprehensive income in the consolidated balance sheet. Gains and losses on transactions denominated in other than the functional currency are reflected in operations. To date the results of operations of this subsidiary and related translation adjustments have not been material in our consolidated results. | ||||||||||||||||
Comprehensive Loss | ' | |||||||||||||||
Comprehensive Loss | ||||||||||||||||
We report all components of comprehensive loss, including net loss, in the consolidated financial statements in the period in which they are recognized. Comprehensive loss is defined as the change in equity during a period from transactions and other events and circumstances from non-owner sources. Net loss and other comprehensive loss, including unrealized gains and losses on marketable securities and foreign currency translation adjustments, are reported, net of their related tax effect, to arrive at comprehensive loss. | ||||||||||||||||
Inventory | ' | |||||||||||||||
Inventory | ||||||||||||||||
Inventory is valued at the lower of cost or market value on a part-by-part basis that approximates first in, first out. We make adjustments to reduce the cost of inventory to its net realizable value, if required, for estimated excess, obsolete and potential scrapped inventories. Factors influencing these adjustments include inventories on hand and on order compared to estimated future usage and sales for existing and new products, as well as judgments regarding quality control testing data, and assumptions about the likelihood of scrap and obsolescence. Once written down the adjustments are considered permanent and are not reversed until the related inventory is sold or disposed. | ||||||||||||||||
Lease, Policy [Policy Text Block] | ' | |||||||||||||||
Deferred Rent | ||||||||||||||||
Rent expense is recorded on a straight-line basis over the term of the lease. The difference between rent expense accrued and amounts paid under the lease agreement is recorded as deferred rent in the accompanying consolidated balance sheets. | ||||||||||||||||
Income Tax, Policy [Policy Text Block] | ' | |||||||||||||||
Income Taxes | ||||||||||||||||
In July 2006, the FASB issued authoritative guidance for accounting for uncertainty in income taxes, which prescribes a recognition threshold and measurement process for recording in the consolidated financial statements uncertain tax positions taken or expected to be taken in a tax return. Additionally, the accounting standard provides guidance on the derecognition, classification, accounting in interim periods and disclosure requirements for uncertain tax positions. | ||||||||||||||||
We file income tax returns in the United States and in various state jurisdictions with varying statutes of limitations. Due to net operating losses incurred, our income tax returns from inception to date are subject to examination by taxing authorities. Our policy is to recognize interest expense and penalties related to income tax matters as a component of income tax expense. As of December 31, 2013, we had no interest or penalties accrued for uncertain tax positions. | ||||||||||||||||
Fair Value Measurements | ' | |||||||||||||||
Fair Value Measurements | ||||||||||||||||
The fair value hierarchy described by the authoritative guidance for fair value measurements is based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value and include the following: | ||||||||||||||||
Level 1—Quoted prices in active markets for identical assets or liabilities. | ||||||||||||||||
Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. | ||||||||||||||||
Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities. | ||||||||||||||||
We base the fair value of our Level 1 financial instruments that are in active markets using quoted market prices for identical instruments. Our Level 1 financial instruments include certificates of deposit. | ||||||||||||||||
We obtain the fair value of our Level 2 financial instruments, which are not in active markets, from a primary professional pricing source using quoted market prices for identical or comparable instruments, rather than direct observations of quoted prices in active markets. Fair value obtained from this professional pricing source can also be based on pricing models whereby all significant observable inputs, including maturity dates, issue dates, settlement date, benchmark yields, reported trades, broker-dealer quotes, issue spreads, benchmark securities, bids, offers or other market related data, are observable or can be derived from, or corroborated by, observable market data for substantially the full term of the asset. | ||||||||||||||||
We validate the quoted market prices provided by our primary pricing service by comparing the fair values of our Level 2 marketable securities portfolio balance provided by our primary pricing service against the fair values of our Level 2 marketable securities portfolio balance provided by our investment managers. | ||||||||||||||||
Certain contingent consideration liabilities are classified within Level 3 of the fair value hierarchy because they use unobservable inputs. For those liabilities, fair value is determined using a probability-weighted discounted cash flow model, the significant inputs, which include the probability and expected timing of achievement and the discount rate, are not observable in the market. | ||||||||||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2013 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 28.7 | $ | — | $ | 28.7 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 8.9 | — | 8.9 | ||||||||||||
Corporate debt | — | 2.5 | — | 2.5 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 11.4 | $ | — | $ | 11.4 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 4.2 | $ | 4.2 | ||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2012 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 4.5 | $ | — | $ | 4.5 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 31.8 | — | 31.8 | ||||||||||||
Corporate debt | — | 8 | — | 8 | ||||||||||||
Commercial paper | — | 0.8 | — | 0.8 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 40.6 | $ | — | $ | 40.6 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 1.7 | $ | 1.7 | ||||||||
The book values of cash equivalents, short-term marketable securities, accounts receivable and accounts payable approximate their respective fair values due to the short-term nature of these instruments. The book value of long-term debt approximates fair value due to the recent issuance. | ||||||||||||||||
Contingent Consideration Liability | ' | |||||||||||||||
Contingent Consideration Liability | ||||||||||||||||
In connection with the acquisition of SweetSpot in March 2012, at the closing of the acquisition, we agreed to issue up to an additional 357,176 shares of our common stock upon the achievement of certain specified milestones, which is classified as contingent consideration. The fair value of the contingent consideration at the closing of $2.2 million was determined using a probability-weighted discounted cash flow model, the significant inputs of which are not observable in the market. The key assumptions in applying this approach are the interest rate and the estimated probabilities and timing assigned to the milestones being achieved. During 2012, approximately $1.1 million related to the contingent consideration was earned and paid through the issuance of 89,296 shares of our common stock, with up to 267,880 shares of our common stock that may still be issued upon the achievement of remaining performance milestones. Changes in fair value are recorded in the consolidated statements of operations as research and development expense since the milestones are related to development activities. | ||||||||||||||||
The following table sets forth the change in the estimated fair value for our liabilities measured on a recurring basis using significant unobservable inputs (Level 3) (in millions): | ||||||||||||||||
Twelve Months Ended | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Fair value measurement at the beginning of period | $ | 1.7 | $ | — | ||||||||||||
Contingent consideration recorded upon acquisition | — | 2.2 | ||||||||||||||
Changes in fair value measurement included in operating expenses | 2.5 | 0.6 | ||||||||||||||
Contingent consideration settled | — | (1.1 | ) | |||||||||||||
Fair value measurement at end of period | $ | 4.2 | $ | 1.7 | ||||||||||||
Impairment of Goodwill and Intangible Assets | ' | |||||||||||||||
Impairment of Goodwill and Intangible Assets | ||||||||||||||||
We test goodwill and intangible assets with indefinite lives for impairment on an annual basis. Also, between annual tests we test for impairment if events and circumstances indicate it is more likely than not that the fair value is less than the carrying value. Events that would indicate impairment and trigger an interim impairment assessment include, but are not limited to, current economic and market conditions, including a decline in market capitalization, a significant adverse change in legal factors, business climate or operational performance of the business and an adverse action or assessment by a regulator. | ||||||||||||||||
New Accounting Pronouncements, Policy [Policy Text Block] | ' | |||||||||||||||
Recent Accounting Guidance | ||||||||||||||||
Effective January 1, 2013, we adopted the Financial Accounting Standards Board ("FASB") authoritative guidance for Reporting Amounts Reclassified Out of Accumulated Other Comprehensive Income ("AOCI"), which requires an entity to report, in one place, information about reclassifications out of AOCI and to present reclassifications by component when reporting changes in AOCI balances. Other than additional disclosure requirements, the adoption of this guidance did not have a material impact on our consolidated financial statements. Reclassifications out of AOCI for the twelve months ended December 31, 2013, 2012 and 2011were not material. | ||||||||||||||||
In July 2013, the FASB issued authoritative guidance for Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists, which provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013, with early adoption permitted. We intend to adopt this guidance at the beginning of our first quarter of fiscal year 2014, and do not believe the adoption of this guidance will have a material impact on our consolidated financial statements or related financial statement disclosures. |
Organization_and_Summary_of_Si2
Organization and Summary of Significant Accounting Policies (Tables) | 12 Months Ended | |||||||||||||||
Dec. 31, 2013 | ||||||||||||||||
Disclosure Organization And Summary Of Significant Accounting Policies Additional Information [Abstract] | ' | |||||||||||||||
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] | ' | |||||||||||||||
The following table summarizes customers who accounted for 10% or more of net accounts receivable: | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Customer A | 19 | % | 12 | % | ||||||||||||
Customer B | 17 | % | 20 | % | ||||||||||||
Fair Value Hierarchy for Financial Assets | ' | |||||||||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2013 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 28.7 | $ | — | $ | 28.7 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 8.9 | — | 8.9 | ||||||||||||
Corporate debt | — | 2.5 | — | 2.5 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 11.4 | $ | — | $ | 11.4 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 4.2 | $ | 4.2 | ||||||||
The following table represents our fair value hierarchy for our financial assets (cash equivalents, marketable securities and restricted cash) and liabilities measured at fair value on a recurring basis as of December 31, 2012 (in millions): | ||||||||||||||||
Fair Value Measurements Using | ||||||||||||||||
Level 1 | Level 2 | Level 3 | Total | |||||||||||||
Cash equivalents | $ | — | $ | 4.5 | $ | — | $ | 4.5 | ||||||||
Marketable securities, available for sale | ||||||||||||||||
U.S. government agencies | — | 31.8 | — | 31.8 | ||||||||||||
Corporate debt | — | 8 | — | 8 | ||||||||||||
Commercial paper | — | 0.8 | — | 0.8 | ||||||||||||
Total marketable securities, available for sale | $ | — | $ | 40.6 | $ | — | $ | 40.6 | ||||||||
Restricted cash | $ | 1 | $ | — | $ | — | $ | 1 | ||||||||
Contingent consideration | $ | — | $ | — | $ | 1.7 | $ | 1.7 | ||||||||
Change in Estimated Fair Value of Liabilities Measured on Recurring Basis | ' | |||||||||||||||
The following table sets forth the change in the estimated fair value for our liabilities measured on a recurring basis using significant unobservable inputs (Level 3) (in millions): | ||||||||||||||||
Twelve Months Ended | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Fair value measurement at the beginning of period | $ | 1.7 | $ | — | ||||||||||||
Contingent consideration recorded upon acquisition | — | 2.2 | ||||||||||||||
Changes in fair value measurement included in operating expenses | 2.5 | 0.6 | ||||||||||||||
Contingent consideration settled | — | (1.1 | ) | |||||||||||||
Fair value measurement at end of period | $ | 4.2 | $ | 1.7 | ||||||||||||
Net_Loss_Per_Common_Share_Tabl
Net Loss Per Common Share (Tables) | 12 Months Ended | ||||||||
Dec. 31, 2013 | |||||||||
Earnings Per Share [Abstract] | ' | ||||||||
Historical Outstanding Anti-Dilutive Securities | ' | ||||||||
Historical outstanding anti-dilutive securities not included in diluted net loss per share attributable to common stockholders calculation (in millions): | |||||||||
Years Ended December 31, | |||||||||
2013 | 2012 | 2011 | |||||||
Options outstanding to purchase common stock | 5.8 | 7.4 | 7.8 | ||||||
Unvested restricted stock units | 3.6 | 3 | 1.9 | ||||||
Total | 9.4 | 10.4 | 9.7 | ||||||
Financial_Statement_Details_Ta
Financial Statement Details (Tables) | 12 Months Ended | |||||||||||||||
Dec. 31, 2013 | ||||||||||||||||
Disclosure of Financial Statement Details [Abstract] | ' | |||||||||||||||
Short Term Marketable Securities, Available for Sale | ' | |||||||||||||||
Short term marketable securities, consisting solely of debt securities with contractual maturities of less than one year were as follows: | ||||||||||||||||
31-Dec-13 | ||||||||||||||||
Amortized | Gross | Gross | Estimated | |||||||||||||
Cost | Unrealized | Unrealized | Market | |||||||||||||
Gains | Losses | Value | ||||||||||||||
U.S. government agencies | $ | 8.9 | $ | — | $ | — | $ | 8.9 | ||||||||
Corporate debt | 2.5 | — | — | 2.5 | ||||||||||||
Total | $ | 11.4 | $ | — | $ | — | $ | 11.4 | ||||||||
December 31, 2012 | ||||||||||||||||
Amortized | Gross | Gross | Estimated | |||||||||||||
Cost | Unrealized | Unrealized | Market | |||||||||||||
Gains | Losses | Value | ||||||||||||||
U.S. government agencies | $ | 31.8 | $ | — | $ | — | $ | 31.8 | ||||||||
Corporate debt | 8 | — | — | 8 | ||||||||||||
Commercial paper | 0.8 | — | — | 0.8 | ||||||||||||
Total | $ | 40.6 | $ | — | $ | — | $ | 40.6 | ||||||||
Accounts Receivable | ' | |||||||||||||||
Accounts Receivable | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accounts receivable | $ | 28.8 | $ | 20.7 | ||||||||||||
Less allowance for doubtful accounts, sales returns and discounts | (2.7 | ) | (1.2 | ) | ||||||||||||
Total | $ | 26.1 | $ | 19.5 | ||||||||||||
Inventory | ' | |||||||||||||||
Inventory | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Raw materials | $ | 4.8 | $ | 2.5 | ||||||||||||
Work-in-process | 0.3 | 0.4 | ||||||||||||||
Finished goods | 3.9 | 4.5 | ||||||||||||||
Total | $ | 9 | $ | 7.4 | ||||||||||||
Property and Equipment | ' | |||||||||||||||
Property and Equipment | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Furniture and fixtures | $ | 2.6 | $ | 2.5 | ||||||||||||
Computer equipment | 15.2 | 12 | ||||||||||||||
Machinery and equipment | 19 | 16.2 | ||||||||||||||
Leasehold improvements | 10.5 | 9.3 | ||||||||||||||
Total | 47.3 | 40 | ||||||||||||||
Accumulated depreciation and amortization | (26.6 | ) | (21.1 | ) | ||||||||||||
Property and equipment, net | $ | 20.7 | $ | 18.9 | ||||||||||||
Schedule of Intangible Assets and Goodwill | ' | |||||||||||||||
Goodwill and Intangible Assets | ||||||||||||||||
Goodwill and intangible assets as of December 31, 2013 consisted of the following (in millions, except months): | ||||||||||||||||
Weighted-Average | Gross | Accumulated | Intangible Assets, net | |||||||||||||
Amortization Period | Amount | Amortization | ||||||||||||||
(in months) | ||||||||||||||||
Intangible assets subject to amortization | ||||||||||||||||
Developed technology | 109 | $ | 3.2 | $ | (0.7 | ) | $ | 2.5 | ||||||||
Customer-related intangible | 70 | 0.6 | (0.2 | ) | 0.4 | |||||||||||
Covenants not-to-compete | 70 | 0.6 | (0.2 | ) | 0.4 | |||||||||||
Total | $ | 4.4 | $ | (1.1 | ) | $ | 3.3 | |||||||||
Intangible assets not subject to amortization | ||||||||||||||||
In-process research and development | 0.2 | |||||||||||||||
Trademarks and trade names | 0.1 | |||||||||||||||
Goodwill | 3.2 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Goodwill and intangible assets as of December 31, 2012 consisted of the following (in millions, except months): | ||||||||||||||||
Weighted-Average | Gross | Accumulated | Intangible Assets, net | |||||||||||||
Amortization Period | Amount | Amortization | ||||||||||||||
(in months) | ||||||||||||||||
Intangible assets subject to amortization | ||||||||||||||||
Developed technology | 109 | $ | 3.2 | $ | (0.3 | ) | $ | 2.9 | ||||||||
Customer-related intangible | 70 | 0.6 | (0.1 | ) | 0.5 | |||||||||||
Covenants not-to-compete | 70 | 0.6 | (0.1 | ) | 0.5 | |||||||||||
Total | $ | 4.4 | $ | (0.5 | ) | $ | 3.9 | |||||||||
Intangible assets not subject to amortization | ||||||||||||||||
In-process research and development | 0.2 | |||||||||||||||
Trademarks and trade names | 0.1 | |||||||||||||||
Goodwill | 3.2 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Schedule of Estimated Future Amortization Expense | ' | |||||||||||||||
The following table sets forth the total future amortization expense related to intangible assets subject to amortization as of December 31, 2013: | ||||||||||||||||
Fiscal Year Ending | ||||||||||||||||
2014 | $ | 0.6 | ||||||||||||||
2015 | 0.7 | |||||||||||||||
2016 | 0.5 | |||||||||||||||
2017 | 0.5 | |||||||||||||||
2018 | 0.3 | |||||||||||||||
Thereafter through 2021 | 0.9 | |||||||||||||||
Total | $ | 3.5 | ||||||||||||||
Accounts Payable and Accrued Liabilities | ' | |||||||||||||||
Accounts Payable and Accrued Liabilities | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accounts payable trade | $ | 4.2 | $ | 3.9 | ||||||||||||
Accrued tax, audit, and legal fees | 1.2 | 0.7 | ||||||||||||||
Clinical trials | 0.3 | 0.1 | ||||||||||||||
Accrued other including warranty | 4.8 | 2.8 | ||||||||||||||
Acquisition-related liabilities | 3.6 | 1.2 | ||||||||||||||
Total | $ | 14.1 | $ | 8.7 | ||||||||||||
Accrued Payroll And Related Expenses | ' | |||||||||||||||
Accrued Payroll and Related Expenses | ||||||||||||||||
December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Accrued paid time off | $ | 2.7 | $ | 2.3 | ||||||||||||
Accrued wages, bonus and taxes | 11.3 | 6.1 | ||||||||||||||
Other accrued employee benefits | 1.1 | 0.8 | ||||||||||||||
Total | $ | 15.1 | $ | 9.2 | ||||||||||||
Accrued Warranty | ' | |||||||||||||||
Accrued Warranty | ||||||||||||||||
Years Ended December 31, | ||||||||||||||||
2013 | 2012 | |||||||||||||||
Beginning balance | $ | 0.3 | $ | 0.3 | ||||||||||||
Charges to costs and expenses | 4.1 | 1.9 | ||||||||||||||
Costs incurred | (3.5 | ) | (1.9 | ) | ||||||||||||
Ending balance | $ | 0.9 | $ | 0.3 | ||||||||||||
Commitments_and_Contingencies_
Commitments and Contingencies (Tables) | 12 Months Ended | |||
Dec. 31, 2013 | ||||
Commitments and Contingencies Disclosure [Abstract] | ' | |||
Schedule of Maturities of Long-term Debt [Table Text Block] | ' | |||
Principal repayment obligations under the Loan Agreement as of December 31, 2013 were as follows (in millions): | ||||
Fiscal Year Ending | ||||
2014 | $ | 2.2 | ||
2015 | 2.3 | |||
2016 | 2.3 | |||
Total | $ | 6.8 | ||
Rental Obligations | ' | |||
Rental obligations, excluding real estate taxes, operating costs, and tenant improvement allowances, under all lease agreements as of December 31, 2013 were as follows (in millions): | ||||
Fiscal Year Ending | ||||
2014 | $ | 2.7 | ||
2015 | 2.7 | |||
2016 | 2.6 | |||
Total | $ | 8 | ||
Business_Combinations_Tables
Business Combinations (Tables) | 12 Months Ended | |||||
Dec. 31, 2013 | ||||||
Business Combinations [Abstract] | ' | |||||
Estimated Initial Purchase Price | ' | |||||
The purchase price is as follows (in millions): | ||||||
Market value of DexCom common stock issued on the Closing | $ | 3.9 | ||||
Fair value of contingent consideration | 2.2 | |||||
Total purchase price | $ | 6.1 | ||||
Purchase Price Allocation | ' | |||||
The following table summarizes the allocation of the purchase price. | ||||||
Estimated Fair Value | Estimated Useful Life in Months | |||||
(in millions) | ||||||
Net assumed liabilities | $ | (1.8 | ) | |||
Developed technology | 3.2 | 109 | ||||
In-process research and development | 0.2 | 51 | ||||
Trademarks and trade names | 0.1 | |||||
Customer-related intangible | 0.6 | 70 | ||||
Covenants not-to-compete | 0.6 | 70 | ||||
Goodwill | 3.2 | |||||
Total purchase price allocation | $ | 6.1 | ||||
Income_Taxes_Tables
Income Taxes (Tables) | 12 Months Ended | |||||||||
Dec. 31, 2013 | ||||||||||
Deferred Tax Assets and Liabilities | ' | |||||||||
December 31, | ||||||||||
2013 | 2012 | |||||||||
Deferred tax assets: | ||||||||||
Net operating loss carryforwards | $ | 132.8 | $ | 123.5 | ||||||
Capitalized research and development expenses | 7.2 | 8.1 | ||||||||
Tax credits | 7.3 | 5.5 | ||||||||
Share-based compensation | 12.2 | 10.1 | ||||||||
Fixed and intangible assets | 1.1 | 1 | ||||||||
Other, net | 5.4 | 4.5 | ||||||||
Total gross deferred tax assets | 166 | 152.7 | ||||||||
Less: valuation allowance | (164.7 | ) | (151.3 | ) | ||||||
Deferred tax liability related to acquired intangibles assets | (1.4 | ) | (1.5 | ) | ||||||
Net deferred tax asset (liability) | (0.1 | ) | (0.1 | ) | ||||||
Reconciliation Between Effective Tax Rate and Statutory Rate | ' | |||||||||
The reconciliation between our effective tax rate on income (loss) from continuing operations and the statutory rate is as follows: | ||||||||||
December 31, | ||||||||||
2013 | 2012 | 2011 | ||||||||
Income taxes (benefit) at statutory rates | 35 | % | 35 | % | 35 | % | ||||
State income tax, net of federal benefit | 2.7 | % | 2.74 | % | 2.16 | % | ||||
Permanent items | (3.64 | )% | (0.84 | )% | (0.41 | )% | ||||
Research and development credits | 6.17 | % | 1.43 | % | 3.93 | % | ||||
Stock and officers compensation | (2.23 | )% | (3.01 | )% | (2.37 | )% | ||||
Rate change | 7.11 | % | (2.13 | )% | 0.29 | % | ||||
Other | 0.08 | % | (1.15 | )% | (2.02 | )% | ||||
Change in valuation allowance | (45.15 | )% | (29.76 | )% | (36.65 | )% | ||||
0.04 | % | 2.28 | % | (0.07 | )% | |||||
Summary of Unrecognized Tax Benefits | ' | |||||||||
The following table summarizes the activity related to our gross unrecognized tax benefits (in millions): | ||||||||||
Balance at January 1, 2011 | $ | 3.6 | ||||||||
Increases related to current year tax positions | 0.8 | |||||||||
Balance at December 31, 2011 | 4.4 | |||||||||
Increases related to current year tax positions | 0.5 | |||||||||
Decreases due to statute of limitation expiration | (0.1 | ) | ||||||||
Balance at December 31, 2012 | 4.8 | |||||||||
Adjustments related to prior year tax positions | 0.5 | |||||||||
Increases related to current year tax positions | 0.9 | |||||||||
Balance at December 31, 2013 | $ | 6.2 | ||||||||
Employee_Benefit_Plans_Tables
Employee Benefit Plans (Tables) | 12 Months Ended | |||||||||||||
Dec. 31, 2013 | ||||||||||||||
Summary of Stock Option Activity | ' | |||||||||||||
A summary of our stock option activity, and related information for the year ended December 31, 2013 is as follows (in millions except weighted-average exercise price and weighted-average remaining contractual term): | ||||||||||||||
Number of | Weighted- | Weighted- | Aggregate Intrinsic | |||||||||||
Shares | Average | Average | Value | |||||||||||
Exercise | Remaining | |||||||||||||
Price | Contractual | |||||||||||||
Term | ||||||||||||||
(years) | ||||||||||||||
Outstanding at December 31, 2012 | 7.4 | $ | 7.67 | |||||||||||
Exercised | (1.5 | ) | 6.64 | |||||||||||
Forfeited | — | 8.18 | ||||||||||||
Outstanding at December 31, 2013 | 5.9 | $ | 7.94 | 4.3 | $ | 160.3 | ||||||||
Exercisable at December 31, 2013 | 5.8 | $ | 7.91 | 4.3 | $ | 159.1 | ||||||||
Schedule of Intrinsic Value of Options Exercised and Fair Value of Options Vested | ' | |||||||||||||
The total intrinsic value of options exercised as of the date of exercise and total fair value of options vested was as follows (in millions): | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Intrinsic value of options exercised | $ | 29.8 | $ | 2.7 | $ | 3 | ||||||||
Fair value of options vested | $ | 1.3 | $ | 3.7 | $ | 5.7 | ||||||||
Schedule of Nonvested Stock Option Activity | ' | |||||||||||||
The following table sets forth a summary of our nonvested stock options and activity as of and for the year ended December 31, 2013: | ||||||||||||||
Shares | Weighted Average | |||||||||||||
Grant Date | ||||||||||||||
Fair Value | ||||||||||||||
(in millions) | ||||||||||||||
Nonvested at December 31, 2012 | 0.3 | $ | 5.52 | |||||||||||
Vested | (0.2 | ) | 5.95 | |||||||||||
Forfeited | — | 5 | ||||||||||||
Nonvested at December 31, 2013 | 0.1 | $ | 4.6 | |||||||||||
Schedule of Share-Based Compensation Expenses | ' | |||||||||||||
The following table summarizes share-based compensation expense related to employee stock options, restricted stock units and employee stock purchases for the years ended December 31, 2013, 2012 and 2011 were allocated as follows (in millions): | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Cost of sales | $ | 2.6 | $ | 2.1 | $ | 1.4 | ||||||||
Research and development | 8.5 | 6.2 | 4.6 | |||||||||||
Selling, general and administrative | 13.5 | 10.1 | 7.5 | |||||||||||
Share-based compensation expense included in operating expenses | $ | 24.6 | $ | 18.4 | $ | 13.5 | ||||||||
Schedule of Valuation Assumptions for Each Option Grant and Employee Stock Purchase Plan Purchase Rights | ' | |||||||||||||
We estimated the fair value of each option grant and ESPP purchase rights on the date of grant using the Black-Scholes option pricing model with the below assumptions. | ||||||||||||||
Options: | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Risk free interest rate | n/a | 1.2 | % | 1.5 – 2.5 | ||||||||||
Dividend yield | n/a | — | % | — | % | |||||||||
Expected volatility of the Company’s stock | n/a | 0.7 | 0.68 – 0.69 | |||||||||||
Expected life (in years) | n/a | 6.1 | 6.1 | |||||||||||
Estimate of Fair Value of ESPP | ' | |||||||||||||
ESPP: | ||||||||||||||
Years Ended December 31, | ||||||||||||||
2013 | 2012 | 2011 | ||||||||||||
Risk free interest rate | 0.13 – 0.17 | 0.11 – 0.19 | 0.21 – 0.26 | |||||||||||
Dividend yield | — | % | — | % | — | % | ||||||||
Expected volatility of the Company’s stock | 0.30 – 0.39 | 0.39 – 0.70 | 0.31 – 0.49 | |||||||||||
Expected life (in years) | 1 | 1 | 1 | |||||||||||
Schedule of Restricted Stock Units Activity | ' | |||||||||||||
The following table sets forth a summary of our RSU activity as of and for the year ended December 31, 2013 (in millions except weighted average grant date fair value): | ||||||||||||||
Shares | Weighted Average | Aggregate | ||||||||||||
Grant Date | Intrinsic Value | |||||||||||||
Fair Value | ||||||||||||||
Nonvested at December 31, 2012 | 3 | $ | 11.6 | |||||||||||
Granted | 2.4 | 17.29 | ||||||||||||
Vested | (1.5 | ) | 11.97 | |||||||||||
Forfeited | (0.3 | ) | 12.6 | |||||||||||
Nonvested at December 31, 2013 | 3.6 | $ | 15.13 | $ | 126.9 | |||||||||
Schedule of Stock Options Reserved for Future Issuance | ' | |||||||||||||
Reserved Shares | ||||||||||||||
We have reserved shares of common stock for future issuance as follows (in millions): | ||||||||||||||
December 31, | ||||||||||||||
2013 | 2012 | |||||||||||||
Stock options and awards under our plans: | ||||||||||||||
Stock options granted and outstanding | 5.9 | 7.4 | ||||||||||||
Unvested RSUs | 3.6 | 3 | ||||||||||||
Reserved for future grant | 0.5 | 0.5 | ||||||||||||
Employee Stock Purchase Plan | 2.6 | 2.1 | ||||||||||||
Total | 12.6 | 13 | ||||||||||||
Quarterly_Financial_Informatio1
Quarterly Financial Information (Tables) | 12 Months Ended | ||||||||||||||||
Dec. 31, 2013 | |||||||||||||||||
Schedule of Quarterly Financial Information | ' | ||||||||||||||||
The following is a summary of the quarterly results of operations for the years ended December 31, 2013 and 2012 (in millions except per share data): | |||||||||||||||||
For the Three Months Ended | |||||||||||||||||
December 31 | September 30 | June 30 | March 31 | ||||||||||||||
Year ended December 31, 2013 | |||||||||||||||||
Revenues | $ | 51.7 | $ | 42.9 | $ | 35.8 | $ | 29.6 | |||||||||
Gross profit | 34.1 | 27.6 | 21.9 | 16.5 | |||||||||||||
Total operating expenses | 36.4 | 33.4 | 31.8 | 27.4 | |||||||||||||
Net loss | (2.6 | ) | (6.0 | ) | (10.1 | ) | (11.1 | ) | |||||||||
Basic and diluted net loss per share | $ | (0.04 | ) | $ | (0.08 | ) | $ | (0.14 | ) | $ | (0.16 | ) | |||||
Year ended December 31, 2012 | |||||||||||||||||
Revenues (a) | $ | 33.3 | $ | 23.1 | $ | 23.5 | $ | 20.1 | |||||||||
Gross profit (a) | 17.5 | 8.4 | 11.2 | 9.4 | |||||||||||||
Total operating expenses | 25.9 | 25.7 | 25.9 | 24.8 | |||||||||||||
Net loss (a) | (8.5 | ) | (17.3 | ) | (14.7 | ) | (14.1 | ) | |||||||||
Basic and diluted net loss per share | $ | (0.12 | ) | $ | (0.25 | ) | $ | (0.21 | ) | $ | (0.21 | ) | |||||
(a) | The sum of the four quarters may not agree to the year total due to rounding within a quarter. |
Organization_and_Summary_of_Si3
Organization and Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended | 12 Months Ended | |||||||||
In Millions, except Share data, unless otherwise specified | Mar. 06, 2012 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Prior Period Reclassification Adjustment | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $1.20 | $1.20 |
Letters of Credit Outstanding, Amount | ' | 0.7 | ' | ' | ' | 0.7 | ' | ' | ' | 0.7 | 0.7 | ' |
Maturity Threshold Of Investments Classified To Cash Equivalents | ' | ' | ' | ' | ' | ' | ' | ' | ' | '90 | ' | ' |
Accumulated deficit | ' | 475.4 | ' | ' | ' | 445.6 | ' | ' | ' | 475.4 | 445.6 | ' |
Cash, cash equivalents and short-term investments | ' | 54.6 | ' | ' | ' | ' | ' | ' | ' | 54.6 | ' | ' |
Restricted cash | ' | 1 | ' | ' | ' | 1 | ' | ' | ' | 1 | 1 | ' |
Working capital | ' | 61 | ' | ' | ' | ' | ' | ' | ' | 61 | ' | ' |
Allocated share-based compensation expense | ' | ' | ' | ' | ' | ' | ' | ' | ' | 24.6 | 18.4 | 13.5 |
Unrecognized compensation cost | ' | 42.8 | ' | ' | ' | ' | ' | ' | ' | 42.8 | ' | ' |
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options | ' | 1.3 | ' | ' | ' | ' | ' | ' | ' | 1.3 | ' | ' |
Money back guarantee period (days) | ' | ' | ' | ' | ' | ' | ' | ' | ' | '30 days | ' | ' |
Revenues | ' | 51.7 | 42.9 | 35.8 | 29.6 | 33.3 | 23.1 | 23.5 | 20.1 | 160 | 99.9 | 76.3 |
Valuation allowance amount | ' | 164.7 | ' | ' | ' | 151.3 | ' | ' | ' | 164.7 | 151.3 | ' |
Net tax benefit (expense) | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0 | 1.3 | 0 |
Deferred Tax Assets, Operating Loss Carryforwards, Domestic | ' | 384.5 | ' | ' | ' | ' | ' | ' | ' | 384.5 | ' | ' |
Operating loss carryforwards | ' | 273 | ' | ' | ' | ' | ' | ' | ' | 273 | ' | ' |
Tax Credit Carryforward, Expiration Date | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1-Jan-20 | ' | ' |
Business Combination, Contingent Consideration, Liability Shares | 357,176 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Fair value of contingent consideration | 2.2 | ' | ' | ' | ' | 2.2 | ' | ' | ' | ' | 2.2 | ' |
Business acquisition, Contingent consideration earned | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.1 | ' |
Business acquisition, shares issued | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 89,296 | ' |
Business acquisition, shares issuable up on achievement of milestones | ' | 267,880 | ' | ' | ' | ' | ' | ' | ' | 267,880 | ' | ' |
Milestone Payments [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Business acquisition, shares issuable up on achievement of milestones | ' | 267,880 | ' | ' | ' | ' | ' | ' | ' | 267,880 | ' | ' |
Direct to Customer [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales revenue from major distributor, amount | ' | ' | ' | ' | ' | ' | ' | ' | ' | 23.4 | 15.9 | 14.5 |
Sales revenue, goods, gross, percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15.00% | 16.00% | 19.00% |
Gross Revenue, Third Party Distribution [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Sales revenue, goods, gross, percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | 44.00% | 31.00% | 23.00% |
Sales revenue, goods, gross | ' | ' | ' | ' | ' | ' | ' | ' | ' | 70.5 | 30.7 | 17.7 |
Byram [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenues | ' | ' | ' | ' | ' | ' | ' | ' | ' | 24.3 | 9.6 | ' |
Concentration Risk, Percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | 15.00% | 9.00% | ' |
Edgepark [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenues | ' | ' | ' | ' | ' | ' | ' | ' | ' | $23.10 | $14.80 | $15.50 |
Concentration Risk, Percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | 14.00% | 15.00% | 20.00% |
Computer Equipment [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Property, Plant and Equipment, Useful Life | ' | ' | ' | ' | ' | ' | ' | ' | ' | '3 years | ' | ' |
Machinery and Equipment [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Property, Plant and Equipment, Useful Life | ' | ' | ' | ' | ' | ' | ' | ' | ' | '4 years | ' | ' |
Furniture and Fixtures [Member] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Property, Plant and Equipment, Useful Life | ' | ' | ' | ' | ' | ' | ' | ' | ' | '5 years | ' | ' |
Organization_and_Summary_of_Si4
Organization and Summary of Significant Accounting Policies - Fair Value Hierarchy for Financial Assets (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Cash Equivalents, at Carrying Value | $28.70 | $4.50 |
Marketable securities, available for sale | 11.4 | 40.6 |
Restricted cash | 1 | 1 |
Contingent consideration | 4.2 | 1.7 |
U.S. government agencies [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 8.9 | 31.8 |
Commercial paper [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | ' | 0.8 |
Corporate debt [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 2.5 | 8 |
Level 1 [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Cash Equivalents, at Carrying Value | 0 | 0 |
Marketable securities, available for sale | 0 | 0 |
Restricted cash | 1 | 1 |
Contingent consideration | 0 | 0 |
Level 1 [Member] | U.S. government agencies [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 0 | 0 |
Level 1 [Member] | Commercial paper [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | ' | 0 |
Level 1 [Member] | Corporate debt [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 0 | 0 |
Level 2 [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Cash Equivalents, at Carrying Value | 28.7 | 4.5 |
Marketable securities, available for sale | 11.4 | 40.6 |
Restricted cash | 0 | 0 |
Contingent consideration | 0 | 0 |
Level 2 [Member] | U.S. government agencies [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 8.9 | 31.8 |
Level 2 [Member] | Commercial paper [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | ' | 0.8 |
Level 2 [Member] | Corporate debt [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 2.5 | 8 |
Level 3 [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Cash Equivalents, at Carrying Value | 0 | 0 |
Marketable securities, available for sale | 0 | 0 |
Restricted cash | 0 | 0 |
Contingent consideration | 4.2 | 1.7 |
Level 3 [Member] | U.S. government agencies [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | 0 | 0 |
Level 3 [Member] | Commercial paper [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | ' | 0 |
Level 3 [Member] | Corporate debt [Member] | ' | ' |
Organization And Summary Of Significant Accounting Policies [Line Items] | ' | ' |
Marketable securities, available for sale | $0 | $0 |
Organization_and_Summary_of_Si5
Organization and Summary of Significant Accounting Policies - Changes in Estimated Fair Value of Liabilities (Detail) (USD $) | 12 Months Ended | |
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ' | ' |
Fair value measurement at the beginning of period | $1.70 | $0 |
Contingent consideration recorded upon acquisition | 0 | 2.2 |
Changes in fair value measurement included in operating expenses | 2.5 | 0.6 |
Fair value measurement at end of period | 4.2 | 1.7 |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements | $0 | ($1.10) |
Organization_and_Summary_of_Si6
Organization and Summary of Significant Accounting Policies Organization and Summary of Significant Accounting Policies - Concentration of Credit Risk (Detail) (Details) | 12 Months Ended | |
Dec. 31, 2013 | Dec. 31, 2012 | |
Customer [Member] | ' | ' |
Entity Wide Accounts Receivable By Major Customer Percentage | 19.00% | 12.00% |
Customer B [Member] | ' | ' |
Entity Wide Accounts Receivable By Major Customer Percentage | 17.00% | 20.00% |
Net_Loss_Per_Common_Share_Hist
Net Loss Per Common Share - Historical Outstanding Anti-Dilutive Securities (Detail) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ' | ' | ' |
Outstanding anti-dilutive securities | 9.4 | 10.4 | 9.7 |
Options outstanding to purchase common stock | ' | ' | ' |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ' | ' | ' |
Outstanding anti-dilutive securities | ' | ' | 7.8 |
Unvested restricted stock units | ' | ' | ' |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ' | ' | ' |
Outstanding anti-dilutive securities | ' | ' | 1.9 |
Financial_Statement_Details_Fi
Financial Statement Details Financial Statement Details - Additional Information (Details) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Disclosure Financial Statement Details Additional Information [Abstract] | ' | ' | ' |
Depreciation | $6.40 | $6.10 | $3.80 |
Finite Lived Intangible Assets Amortization Expenses | $0.60 | $0.50 | ' |
Financial_Statement_Details_Sh
Financial Statement Details - Short Term Marketable Securities, Available for Sale (Detail) (USD $) | 12 Months Ended | |
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Financial Statement Details [Line Items] | ' | ' |
Amortized Cost | $11.40 | $40.60 |
Gross Unrealized Gains | 0 | 0 |
Gross Unrealized Losses | 0 | 0 |
Estimated Market Value | 11.4 | 40.6 |
U.S. government agencies [Member] | ' | ' |
Financial Statement Details [Line Items] | ' | ' |
Amortized Cost | 8.9 | 31.8 |
Gross Unrealized Gains | 0 | 0 |
Gross Unrealized Losses | 0 | 0 |
Estimated Market Value | 8.9 | 31.8 |
Commercial paper [Member] | ' | ' |
Financial Statement Details [Line Items] | ' | ' |
Amortized Cost | ' | 0.8 |
Gross Unrealized Gains | ' | 0 |
Gross Unrealized Losses | ' | 0 |
Estimated Market Value | ' | 0.8 |
Corporate debt [Member] | ' | ' |
Financial Statement Details [Line Items] | ' | ' |
Amortized Cost | 2.5 | 8 |
Gross Unrealized Gains | 0 | 0 |
Gross Unrealized Losses | 0 | 0 |
Estimated Market Value | $2.50 | $8 |
Financial_Statement_Details_Fi1
Financial Statement Details Financial Statement Details - Accounts Receivable (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Accounting Policies [Abstract] | ' | ' |
Accounts Receivable, Gross | $28.80 | $20.70 |
Allowance for Doubtful Accounts Receivable | -2.7 | -1.2 |
Accounts Receivable, Net | $26.10 | $19.50 |
Financial_Statement_Details_In
Financial Statement Details - Inventory (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Disclosure of Financial Statement Details [Abstract] | ' | ' |
Raw materials | $4.80 | $2.50 |
Work-in-process | 0.3 | 0.4 |
Finished goods | 3.9 | 4.5 |
Total | $9 | $7.40 |
Financial_Statement_Details_Fi2
Financial Statement Details Financial Statement Details - Property and Equipment (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Financial Statement Details [Abstract] | ' | ' |
Furniture and Fixtures, Gross | $2.60 | $2.50 |
Computer Equipment | 15.2 | 12 |
Machinery and Equipment, Gross | 19 | 16.2 |
Leasehold Improvements, Gross | 10.5 | 9.3 |
Property and Equipment, Gross | 47.3 | 40 |
Accumulated Depreciation and Amortization | -26.6 | -21.1 |
Property and Equipment, Net | $20.70 | $18.90 |
Financial_Statement_Details_Fi3
Financial Statement Details Financial Statement Details - Schedule of Goodwill and Intangible Assets (Details) (USD $) | 12 Months Ended | |
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Net | $3.50 | ' |
Intangible Assets Not Subject To Amortization [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Net | 3.5 | 3.5 |
Intangible Assets Not Subject To Amortization [Member] | In Process Research and Development [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Net | 0.2 | 0.2 |
Intangible Assets Not Subject To Amortization [Member] | Trademarks and Trade Names [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Net | 0.1 | 0.1 |
Intangible Assets Not Subject To Amortization [Member] | Goodwill [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Net | 3.2 | 3.2 |
Intangible Assets Subject To Amortization [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite-Lived Intangible Assets, Gross | 4.4 | 4.4 |
Finite-Lived Intangible Assets, Accumulated Amortization | -1.1 | -0.5 |
Finite-Lived Intangible Assets, Net | 3.3 | 3.9 |
Intangible Assets Subject To Amortization [Member] | Developed Technology Rights [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite Lived Intangible Asset Weighted Average Amortization Period | '109 months | '109 months |
Finite-Lived Intangible Assets, Gross | 3.2 | 3.2 |
Finite-Lived Intangible Assets, Accumulated Amortization | -0.7 | -0.3 |
Finite-Lived Intangible Assets, Net | 2.5 | 2.9 |
Intangible Assets Subject To Amortization [Member] | Customer Related Intangibles [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite Lived Intangible Asset Weighted Average Amortization Period | '70 months | '70 months |
Finite-Lived Intangible Assets, Gross | 0.6 | 0.6 |
Finite-Lived Intangible Assets, Accumulated Amortization | -0.2 | -0.1 |
Finite-Lived Intangible Assets, Net | 0.4 | 0.5 |
Intangible Assets Subject To Amortization [Member] | Covenants Not To Compete [Member] | ' | ' |
Finite-Lived Intangible Assets [Line Items] | ' | ' |
Finite Lived Intangible Asset Weighted Average Amortization Period | '70 months | '70 months |
Finite-Lived Intangible Assets, Gross | 0.6 | 0.6 |
Finite-Lived Intangible Assets, Accumulated Amortization | -0.2 | -0.1 |
Finite-Lived Intangible Assets, Net | $0.40 | $0.50 |
Financial_Statement_Details_Fi4
Financial Statement Details Financial Statement Details - Schedule of Future Amortization Expense (Details) (USD $) | Dec. 31, 2013 |
In Millions, unless otherwise specified | |
Disclosure Financial Statement Details Schedule Of Future Amortization Expense [Abstract] | ' |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | $0.60 |
Finite-Lived Intangible Assets, Amortization Expense, Year Two | 0.7 |
Finite-Lived Intangible Assets, Amortization Expense, Year Three | 0.5 |
Finite-Lived Intangible Assets, Amortization Expense, Year Four | 0.5 |
Finite-Lived Intangible Assets, Amortization Expense, Year Five | 0.3 |
Finite-Lived Intangible Assets, Amortization Expense, after Year Five | 0.9 |
Finite-Lived Intangible Assets, Net | $3.50 |
Financial_Statement_Details_Ac
Financial Statement Details - Accounts Payable and Accrued Liabilities (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Disclosure of Financial Statement Details [Abstract] | ' | ' |
Accounts payable trade | $4.20 | $3.90 |
Accrued tax, audit, and legal fees | 1.2 | 0.7 |
Clinical trials | 0.3 | 0.1 |
Accrued other including warranty | 4.8 | 2.8 |
Acquisition-related liabilities | 3.6 | 1.2 |
Total | $14.10 | $8.70 |
Financial_Statement_Details_Fi5
Financial Statement Details Financial Statement Details - Accrued Payroll and Related Expenses (Details) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Disclosure Financial Statement Details Accrued Payroll And Related Expenses [Abstract] | ' | ' |
Accrued Vacation | $2.70 | $2.30 |
Accrued Wages Bonus And Taxes | 11.3 | 6.1 |
Accrued Employee Benefits, Current | 1.1 | 0.8 |
Employee-related Liabilities | $15.10 | $9.20 |
Financial_Statement_Details_Ac1
Financial Statement Details - Accrued Warranty (Detail) (USD $) | 12 Months Ended | |
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 |
Movement in Standard Product Warranty Accrual [Roll Forward] | ' | ' |
Beginning balance | $0.30 | $0.30 |
Charges to costs and expenses | 4.1 | 1.9 |
Product Warranty Accrual, Payments | -3.5 | -1.9 |
Ending balance | $0.90 | $0.30 |
Commitments_and_Contingencies_1
Commitments and Contingencies - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended | ||
In Millions, unless otherwise specified | Nov. 30, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Schedule Of Commitments And Contingencies [Line Items] | ' | ' | ' | ' |
Long-term Line of Credit | $15 | ' | ' | ' |
Term Loan Debt | 20 | ' | ' | ' |
Prime Rate Plus | 0.50% | ' | ' | ' |
Line Of Credit Facility Borrowing Base Percentage Of Eligible Accounts | 80.00% | ' | ' | ' |
Term Loan Advances Aggregate Amount | 7 | ' | ' | ' |
Debt Instrument, Unused Borrowing Capacity, Amount | 13 | ' | ' | ' |
Debt Instrument Basis Spread On Treasury Variable Rate | 6.94% | ' | ' | ' |
Debt Instrument, Maturity Date | 1-Nov-16 | ' | ' | ' |
Debt Issuance Cost | ' | ' | 1.1 | ' |
Unamortized Debt Issuance Expense | ' | 0.6 | ' | ' |
Option to renew lease, in years | ' | '5 years | ' | ' |
Potential rental rate adjustment, minimum | ' | 2.50% | ' | ' |
Potential rental rate adjustment, maximum | ' | 4.00% | ' | ' |
Term of lease (years) | ' | '3 years | ' | ' |
Rent expense | ' | 3 | 2.5 | 2.6 |
Purchase commitments with vendors total | ' | 16.2 | ' | ' |
Purchase commitments with vendors total maximum term, in years | ' | '1 year | ' | ' |
2014 | ' | 2.2 | ' | ' |
2015 | ' | 2.3 | ' | ' |
2016 | ' | 2.3 | ' | ' |
Total | ' | $6.80 | ' | ' |
Subsidiaries [Member] | ' | ' | ' | ' |
Schedule Of Commitments And Contingencies [Line Items] | ' | ' | ' | ' |
Term of lease (years) | ' | '5 years | ' | ' |
Commitments_and_Contingencies_2
Commitments and Contingencies - Rental Obligations (Detail) (USD $) | Dec. 31, 2013 |
In Millions, unless otherwise specified | |
Commitments and Contingencies Disclosure [Abstract] | ' |
2014 | $2.70 |
2015 | 2.7 |
2016 | 2.6 |
Total | $8 |
Commitments_and_Contingencies_3
Commitments and Contingencies Commitments and Contingencies - Litigation (Details) (Abbotts Diabetes Care [Member]) | 0 Months Ended | 63 Months Ended | ||||||
Aug. 18, 2006 | Mar. 31, 2013 | Dec. 31, 2013 | Sep. 30, 2007 | Feb. 28, 2007 | Aug. 19, 2006 | Jun. 27, 2006 | Mar. 31, 2006 | |
patents | number_patents | number_patents | number_patents | number_patents | number_patents | number_patents | number_patents | |
number_patents | requests | requests | ||||||
Abbotts Diabetes Care [Member] | ' | ' | ' | ' | ' | ' | ' | ' |
Loss Contingencies [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' |
Patents Reexamined | ' | ' | ' | ' | 3 | ' | ' | 4 |
Additional Patents, Infringement Claims | ' | ' | ' | ' | ' | ' | 3 | ' |
Number of Patents, Infringement Claims, Stay Granted | 4 | ' | ' | ' | ' | ' | ' | ' |
Number of Patent Infringement Claims Dismissed | 1 | ' | ' | ' | ' | ' | ' | ' |
Number of Patents, Infringement Claims, Struck or Disallowed | 3 | ' | ' | ' | ' | ' | ' | ' |
Number of Patents, Infringement Claims, Filed Seperately | ' | ' | ' | ' | ' | 3 | ' | ' |
Number of Patents, Infringement Claims, Consolidated | ' | ' | ' | 7 | ' | ' | ' | ' |
Loss Contingency, Number of Patent Infringement Claims, Atleast One Associated Reexamination Request, At Various Stages in Patent Office | ' | ' | 2 | ' | ' | ' | ' | ' |
Loss Contingency, Number of Claims Under Rexamination | ' | ' | 7 | ' | ' | ' | ' | ' |
Loss Contingency, Patents Issued Certificates of Reexamination | ' | ' | 4 | ' | ' | ' | ' | ' |
Number of Reexamination Requests Seeking to Invalidate Patents | ' | 38 | ' | ' | ' | ' | ' | ' |
Number of Patents, Reexamination Requests to Invalidate Filed For | ' | 31 | ' | ' | ' | ' | ' | ' |
Number of Reexamination Requests Seeking to Invalidate Patents, Various Stages in Patent Office | ' | ' | 4 | ' | ' | ' | ' | ' |
Number of Reexamination Requests Seeking to Invalidate Patents, Issued Certificate of Reexamination | ' | ' | 33 | ' | ' | ' | ' | ' |
Number of Reexamination Requests Seeking to Invalidate Patents, Denied | ' | ' | 1 | ' | ' | ' | ' | ' |
Number of European Patents, Opposition Filed | ' | ' | 6 | ' | ' | ' | ' | ' |
Development_and_Other_Agreemen1
Development and Other Agreements - Additional Information (Detail) (USD $) | 12 Months Ended | 12 Months Ended | 1 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | |||||||||||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Jul. 31, 2013 | Dec. 31, 2013 | Jul. 31, 2013 | Jul. 31, 2013 | Jul. 31, 2013 | Nov. 30, 2008 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2013 | Dec. 31, 2012 | Nov. 30, 2011 | Dec. 31, 2012 | Feb. 01, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 01, 2012 | Feb. 29, 2012 |
Helmsley Grant [Member] | Option One [Member] | Option Two [Member] | Option One [Member] | Edwards Lifesciences LLC [Member] | Edwards Lifesciences LLC [Member] | Edwards Lifesciences LLC [Member] | Edwards Lifesciences LLC [Member] | Edwards Lifesciences LLC [Member] | Roche Diagnostics Operations [Member] | Roche Diagnostics Operations [Member] | Roche Diagnostics Operations [Member] | Roche Diagnostics Operations [Member] | Tandem Diabetes Care, Inc. [Member] | Tandem Diabetes Care, Inc. [Member] | Tandem Diabetes Care, Inc. [Member] | Tandem Diabetes Care, Inc. [Member] | Tandem Diabetes Care, Inc. [Member] | |||||
Research and Development Grant [Member] | Agreements With Roche Diagnostics Operations [Member] | Agreements With Roche Diagnostics Operations [Member] | Maximum [Member] | Initial Payment [Member] | ||||||||||||||||||
Development Agreements [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Joint commitment upfront fee | ' | ' | ' | ' | ' | ' | ' | ' | $13 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Third party contribution to off set expenses | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10 | ' | ' | ' | ' | ' | ' | ' | 1 | ' |
Profit-sharing percent maximum | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Commercial sales royalty maximum | ' | ' | ' | ' | ' | ' | ' | ' | ' | 6.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Development grant and other revenue | 2.9 | 6.9 | 10.4 | ' | ' | ' | ' | ' | ' | ' | 1.4 | 2.1 | ' | 0.8 | 0.2 | ' | ' | ' | 0.5 | 0.3 | ' | ' |
Money eligible to be received related to regulatory approvals and manufacturing readiness | ' | ' | ' | ' | ' | ' | ' | ' | 12 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
One-time milestone payment, received | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.5 | ' | ' | ' | ' | ' | 1 |
Additional payment received upon agreement of a development and regulatory plan | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.5 | ' | ' | ' | ' | ' |
Additional milestone payments | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2 | ' | ' | ' | ' |
Research and Development Arrangement, Value of Grant | ' | ' | ' | 4 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Research and Development Arrangement, Grants Received During Period | 0.5 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Royalty Guarantees, Commitments, Amounts, Per Year | ' | ' | ' | ' | ' | ' | ' | 2 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Royalty Guarantees, Commitments, Commitment Period | ' | ' | ' | ' | ' | '4 years | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Royalty Guarantees, Commitments, Amount | ' | ' | ' | ' | ' | ' | 6 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Research and Development Arrangement, Contract to Perform for Others, Compensation Earned | ' | ' | ' | ' | $0.50 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Business_Combinations_Addition
Business Combinations - Additional Information (Detail) (USD $) | 12 Months Ended | 1 Months Ended | |||
In Millions, except Share data, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2013 | Mar. 06, 2012 | Mar. 06, 2012 | Dec. 31, 2013 |
Closing Payment and the Promissory Note Payments [Member] | Milestone Payments [Member] | ||||
Short-term Debt [Line Items] | ' | ' | ' | ' | ' |
Common stock of acquisition | 100.00% | ' | ' | ' | ' |
Common stock shares issued as the closing payment | ' | ' | ' | 384,483 | ' |
Aggregate value of shares issued to Sweetspot shareholders | $3.90 | ' | $3.90 | ' | ' |
Fair value of contingent consideration | 2.2 | ' | 2.2 | ' | ' |
Business acquisition, Contingent consideration earned | 1.1 | ' | ' | ' | ' |
Business acquisition, shares issued | 89,296 | ' | ' | ' | ' |
Business acquisition, shares issuable up on achievement of milestones | ' | 267,880 | ' | ' | 267,880 |
Acquisition-related costs | $0.30 | ' | ' | ' | ' |
Business_Combinations_Estimate
Business Combinations - Estimated Initial Purchase Price (Detail) (USD $) | 0 Months Ended | ||
In Millions, unless otherwise specified | Feb. 21, 2012 | Dec. 31, 2012 | Mar. 06, 2012 |
Business Combinations [Abstract] | ' | ' | ' |
Market value of DexCom common stock issued on the Closing | ' | $3.90 | $3.90 |
Fair value of contingent consideration | ' | 2.2 | 2.2 |
Business Combination, Consideration Transferred | $6.10 | ' | ' |
Business_Combinations_Purchase
Business Combinations - Purchase Price Allocation (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Business Acquisition [Line Items] | ' | ' |
Goodwill | $3.20 | $3.20 |
Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Net assumed liabilities | ' | -1.8 |
Goodwill | ' | 3.2 |
Total purchase price allocation | ' | 6.1 |
Developed Technology Rights [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Fair Value | ' | 3.2 |
Estimated Useful Life in Months | ' | '109 months |
In Process Research and Development [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Fair Value | ' | 0.2 |
In-Process Research And Development [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Useful Life in Months | ' | '51 months |
Trademarks and Trade Names [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Fair Value, Intangible Assets Not Amortizable | ' | 0.1 |
Customer Relationships [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Fair Value | ' | 0.6 |
Customer-Related Intangible [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Useful Life in Months | ' | '70 months |
Covenants Not-To-Compete [Member] | Sweetspot [Member] | ' | ' |
Business Acquisition [Line Items] | ' | ' |
Estimated Fair Value | ' | $0.60 |
Estimated Useful Life in Months | ' | '70 months |
Stockholders_Equity_Additional
Stockholders' Equity - Additional Information (Detail) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Shareholders Equity [Line Items] | ' | ' |
Common stock, shares issued (in shares) | 72.8 | 69.7 |
Income_Taxes_Additional_Inform
Income Taxes - Additional Information (Detail) (USD $) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Operating Loss Carryforwards [Line Items] | ' | ' | ' |
Net tax benefit (expense) | $0 | $1,300,000 | $0 |
Deferred Tax Assets, Operating Loss Carryforwards, Domestic | 384,500,000 | ' | ' |
Operating loss carryforwards | 273,000,000 | ' | ' |
Tax Credit Carryforward, Expiration Date | 1-Jan-20 | ' | ' |
Tax credit carryforwards subject to expiration | 2,100,000 | ' | ' |
Net operating losses and tax credit carryforwards, limitations on use, ownership changes | 50.00% | ' | ' |
Net operating losses and tax credit carryforwards, limitations on use, ownership change period (years) | '3 years | ' | ' |
Valuation allowance amount | 164,700,000 | 151,300,000 | ' |
Share-based compensation, excess tax benefits | 17,100,000 | ' | ' |
Unrecognized tax benefits | 0 | ' | ' |
Federal [Member] | ' | ' | ' |
Operating Loss Carryforwards [Line Items] | ' | ' | ' |
Deferred Tax Assets, Tax Credit Carryforwards, Research | 6,400,000 | ' | ' |
Operating Loss Carryforwards, Expiration Dates | 1-Jan-19 | ' | ' |
State [Member] | ' | ' | ' |
Operating Loss Carryforwards [Line Items] | ' | ' | ' |
Deferred Tax Assets, Tax Credit Carryforwards, Research | $9,000,000 | ' | ' |
Operating Loss Carryforwards, Expiration Dates | 1-Jan-14 | ' | ' |
Income_Taxes_Deferred_Tax_Asse
Income Taxes - Deferred Tax Assets and Liabilities (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Summary Of Net Deferred Tax Assets [Line Items] | ' | ' |
Net operating loss carryforwards | $132.80 | $123.50 |
Capitalized research and development expenses | 7.2 | 8.1 |
Tax credits | 7.3 | 5.5 |
Share-based compensation | 12.2 | 10.1 |
Fixed and intangible assets | 1.1 | 1 |
Other, net | 5.4 | 4.5 |
Total gross deferred tax assets | 166 | 152.7 |
Less: valuation allowance | -164.7 | -151.3 |
Deferred tax liability related to acquired intangibles assets | -1.4 | -1.5 |
Net deferred tax asset (liability) | ($0.10) | ($0.10) |
Income_Taxes_Reconciliation_Be
Income Taxes - Reconciliation Between Effective Tax Rate and Statutory Rate (Detail) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Reconciliation Of Statutory Federal Tax Rate [Line Items] | ' | ' | ' |
Income taxes (benefit) at statutory rates | 35.00% | 35.00% | 35.00% |
State income tax, net of federal benefit | 2.70% | 2.74% | 2.16% |
Permanent items | -3.64% | -0.84% | -0.41% |
Research and development credits | 6.17% | 1.43% | 3.93% |
Stock and officers compensation | -2.23% | -3.01% | -2.37% |
Rate change | 7.11% | -2.13% | 0.29% |
Other | 0.08% | -1.15% | -2.02% |
Change in valuation allowance | -45.15% | -29.76% | -36.65% |
Effective tax rate on income (loss) from continuing operations, total | 0.04% | 2.28% | -0.07% |
Income_Taxes_Summary_of_Unreco
Income Taxes - Summary of Unrecognized Tax Benefits (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Reconciliation Of Unrecognized Tax Benefits [Line Items] | ' | ' | ' |
Beginning Balance | $4.80 | $4.40 | $3.60 |
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions | 0.5 | ' | ' |
Increases related to current year tax positions | 0.9 | 0.5 | 0.8 |
Decreases due to statute of limitation expiration | ' | -0.1 | ' |
Ending Balance | $6.20 | $4.80 | $4.40 |
Employee_Benefit_Plans_Additio
Employee Benefit Plans - Additional Information (Detail) (USD $) | 0 Months Ended | 12 Months Ended | ||||||||||
In Millions, except Share data, unless otherwise specified | Jul. 31, 2013 | Jan. 31, 2013 | Jul. 31, 2012 | Jan. 31, 2012 | Jul. 29, 2011 | Jan. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2013 | Dec. 31, 2013 |
Restricted Stock [Member] | Restricted Stock [Member] | Restricted Stock [Member] | Restricted Stock [Member] | Restricted Stock [Member] | ||||||||
Minimum [Member] | Maximum [Member] | |||||||||||
Maximum employee contribution percentage | ' | ' | ' | ' | ' | ' | 90.00% | ' | ' | ' | ' | ' |
Maximum payroll deductions, percentage | ' | ' | ' | ' | ' | ' | 10.00% | ' | ' | ' | ' | ' |
Employee purchase price floor, percentage | ' | ' | ' | ' | ' | ' | 85.00% | ' | ' | ' | ' | ' |
Offering period (months) | ' | ' | ' | ' | ' | ' | '12 months | ' | ' | ' | ' | ' |
Offering periods, frequency (months) | ' | ' | ' | ' | ' | ' | '6 months | ' | ' | ' | ' | ' |
Number of purchase periods within an offering period | ' | ' | ' | ' | ' | ' | 2 | ' | ' | ' | ' | ' |
Purchase period (months) | ' | ' | ' | ' | ' | ' | '6 months | ' | ' | ' | ' | ' |
Purchase date, frequency (months) | ' | ' | ' | ' | ' | ' | '6 months | ' | ' | ' | ' | ' |
Increase in shares reserved for ESPP, percentage | ' | ' | ' | ' | ' | ' | 1.00% | ' | ' | ' | ' | ' |
Common stock issued under ESPP | 106,415 | 93,246 | 89,114 | 68,960 | 54,408 | 77,466 | ' | ' | ' | ' | ' | ' |
Vesting period, years | ' | ' | ' | ' | ' | ' | '4 years | ' | ' | ' | '1 year | '4 years |
Vesting period, maximum, years | ' | ' | ' | ' | ' | ' | '10 years | ' | ' | ' | ' | ' |
Equity Incentive Plan fair market value on grant date floor, percentage | ' | ' | ' | ' | ' | ' | 100.00% | ' | ' | ' | ' | ' |
Increase in shares reserved for Equity Incentive Plans, percentage | ' | ' | ' | ' | ' | ' | 3.00% | ' | ' | ' | ' | ' |
Weighted average fair value of options granted | ' | ' | ' | ' | ' | ' | ' | $17.29 | $10.58 | $13.99 | ' | ' |
In-the-money options, maximum exercise price | ' | ' | ' | ' | ' | ' | $35.41 | ' | ' | ' | ' | ' |
Options in-the-money, number | ' | ' | ' | ' | ' | ' | 5,900,000 | ' | ' | ' | ' | ' |
Options in-the-money, exercisable, number | ' | ' | ' | ' | ' | ' | 5,800,000 | ' | ' | ' | ' | ' |
Total fair value of RSUs vested | ' | ' | ' | ' | ' | ' | ' | $17.50 | $11.80 | $2.90 | ' | ' |
Employee_Benefit_Plans_Summary
Employee Benefit Plans - Summary of Stock Option Activity (Detail) (USD $) | 12 Months Ended |
In Millions, unless otherwise specified | Dec. 31, 2013 |
Schedule Of Stock Options [Line Items] | ' |
Outstanding, Beginning | 7.4 |
Exercised, Number of Shares | -1.5 |
Cancelled, Number of Shares | 0 |
Outstanding, Ending | 5.9 |
Exercisable, Number of Shares | 5.8 |
Outstanding, Weighted-Average Exercise Price | $7.67 |
Exercised, Weighted-Average Exercise Price | $6.64 |
Cancelled, Weighted-Average Exercise Price | $8.18 |
Outstanding, Weighted-Average Exercise Price | $7.94 |
Exercisable, Weighted-Average Exercise Price | $7.91 |
Outstanding, Weighted-Average Remaining Contractual Term (years) | '4 years 3 months 18 days |
Exercisable, Weighted-Average Remaining Contractual Term (years) | '4 years 3 months 18 days |
Outstanding, Aggregate Intrinsic Value | $160.30 |
Exercisable, Aggregate Intrinsic Value | $159.10 |
Employee_Benefit_Plans_Schedul
Employee Benefit Plans - Schedule of Intrinsic Value of Options Exercised and Fair Value of Options Vested (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Intrinsic value of options exercised | $29.80 | $2.70 | $3 |
Fair value of options vested | $1.30 | $3.70 | $5.70 |
Employee_Benefit_Plans_Schedul1
Employee Benefit Plans - Schedule of Nonvested Stock Options Activity (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2013 | Dec. 31, 2012 |
Nonvested [Member] | Nonvested [Member] | ||
Outstanding, Beginning | 7.4 | 0.1 | 0.3 |
Vested, Shares | -0.2 | ' | ' |
Forfeited, Shares | 0 | ' | ' |
Outstanding, Ending | 5.9 | 0.1 | 0.3 |
Outstanding, Weighted-Average Grant Date Fair Value | $5.52 | ' | ' |
Outstanding, Weighted-Average Grant Date Fair Value | $5.95 | ' | ' |
Outstanding, Weighted-Average Grant Date Fair Value | $5 | ' | ' |
Outstanding, Weighted-Average Grant Date Fair Value | $4.60 | ' | ' |
Employee_Benefit_Plans_Schedul2
Employee Benefit Plans - Schedule of Share Based Compensation Expenses (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Share-based compensation expense included in operating expenses | $24.60 | $18.40 | $13.50 |
Cost of sales [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Share-based compensation expense included in operating expenses | 2.6 | 2.1 | 1.4 |
Research and development [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Share-based compensation expense included in operating expenses | 8.5 | 6.2 | 4.6 |
Selling, general and administrative [Member] | ' | ' | ' |
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items] | ' | ' | ' |
Share-based compensation expense included in operating expenses | $13.50 | $10.10 | $7.50 |
Employee_Benefit_Plans_Schedul3
Employee Benefit Plans - Schedule of Valuation Assumptions for Each Option Grant and Employee Stock Purchase Plan Purchase Rights (Detail) | 12 Months Ended | ||
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | |
Stock Options [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Risk free interest rate | ' | 1.20% | ' |
Dividend yield | ' | 0.00% | 0.00% |
Expected volatility of the Company's stock | ' | 70.00% | ' |
Expected life (in years) | ' | '6 years 1 month 6 days | '6 years 1 month 6 days |
Employee Stock Purchase Plan [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Dividend yield | 0.00% | 0.00% | 0.00% |
Expected life (in years) | '1 year | '1 year | '1 year |
Minimum [Member] | Stock Options [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Risk free interest rate | ' | ' | 1.50% |
Expected volatility of the Company's stock | ' | ' | 68.00% |
Minimum [Member] | Employee Stock Purchase Plan [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Risk free interest rate | 0.13% | 0.11% | 0.21% |
Expected volatility of the Company's stock | 0.30% | 0.39% | 0.31% |
Maximum [Member] | Stock Options [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Risk free interest rate | ' | ' | 2.50% |
Expected volatility of the Company's stock | ' | ' | 69.00% |
Maximum [Member] | Employee Stock Purchase Plan [Member] | ' | ' | ' |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Risk free interest rate | 0.17% | 0.19% | 0.26% |
Expected volatility of the Company's stock | 0.39% | 0.70% | 0.49% |
Employee_Benefit_Plans_Schedul4
Employee Benefit Plans - Schedule of Restricted Stock Units Activity (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 |
In Millions, unless otherwise specified | Unvested restricted stock units | ||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' |
Outstanding,Shares | 3.6 | 3 | 3 |
Granted, Shares | ' | ' | 2.4 |
Vested, Shares | ' | ' | -1.5 |
Forfeited, Shares | ' | ' | -0.3 |
Outstanding, Shares | 3.6 | 3 | 3.6 |
Outstanding, Weighted Average Grant Date Fair Value | ' | ' | $11.60 |
Granted, Weighted Average Grant Date Fair Value | ' | ' | $17.29 |
Vested, Weighted Average Grant Date Fair Value | ' | ' | $11.97 |
Forfeited, Weighted Average Grant Date Fair Value | ' | ' | $12.60 |
Outstanding, Weighted Average Grant Date Fair Value | ' | ' | $15.13 |
Outstanding, Aggregate Intrinsic Value | ' | ' | $126.90 |
Employee_Benefit_Plans_Schedul5
Employee Benefit Plans - Schedule of Stock Options Reserved for Future Issuance (Detail) | Dec. 31, 2013 | Dec. 31, 2012 |
In Millions, unless otherwise specified | ||
Stock options granted and outstanding | 5.9 | 7.4 |
Unvested RSUs | 3.6 | 3 |
Reserved for future grant | 0.5 | 0.5 |
Employee Stock Purchase Plan | 2.6 | 2.1 |
Total | 12.6 | 13 |
Quarterly_Financial_Informatio2
Quarterly Financial Information - Schedule of Quarterly Financial Information (Detail) (USD $) | 3 Months Ended | 12 Months Ended | |||||||||
In Millions, except Per Share data, unless otherwise specified | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Quarterly Financial Data [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Revenues | $51.70 | $42.90 | $35.80 | $29.60 | $33.30 | $23.10 | $23.50 | $20.10 | $160 | $99.90 | $76.30 |
Gross profit | 34.1 | 27.6 | 21.9 | 16.5 | 17.5 | 8.4 | 11.2 | 9.4 | 100.1 | 46.6 | 35.9 |
Total operating costs | 36.4 | 33.4 | 31.8 | 27.4 | 25.9 | 25.7 | 25.9 | 24.8 | 129 | 102.3 | 80.7 |
Net loss | ($2.60) | ($6) | ($10.10) | ($11.10) | ($8.50) | ($17.30) | ($14.70) | ($14.10) | ($29.80) | ($54.50) | ($44.70) |
Basic and diluted net loss per share | ($40,000) | ($80,000) | ($140,000) | ($160,000) | ($120,000) | ($250,000) | ($210,000) | ($210,000) | ($0.42) | ($0.79) | ($0.68) |
Valuation_and_Qualifying_Accou1
Valuation and Qualifying Accounts (Detail) (USD $) | 12 Months Ended | ||
In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 |
Allowance for doubtful accounts | ' | ' | ' |
Balance, beginning | $1.20 | $0.60 | $0.50 |
Provision for doubtful accounts | 2.7 | 1.2 | 0.7 |
Write-off and adjustments | -1.4 | -0.7 | -0.7 |
Recoveries | 0.1 | 0.1 | 0.1 |
Balance, ending | $2.60 | $1.20 | $0.60 |