Organization and Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Summary of Significant Accounting Policies	Organization and Summary of Significant Accounting Policies Description of the Company. Omnicell, Inc. ("Omnicell," "our," "us," "we," or the "Company") was incorporated in California in 1992 under the name Omnicell Technologies, Inc. and reincorporated in Delaware in 2001 as Omnicell, Inc. Our major products are automated medication supply control systems and medical adherence solutions which are sold in our principal market, which is the healthcare industry. Our market is primarily located in the United States and Canada. Basis of presentation. These interim condensed consolidated financial statements are unaudited but reflect, in the opinion of management, all adjustments, consisting of normal recurring adjustments and accruals, necessary to present fairly the financial position of Omnicell and its subsidiaries as of March 31, 2014, the results of their operations, comprehensive income and cash flows for the three months ended March 31, 2014 and 2013. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), have been condensed or omitted in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2013. Our results of operations, comprehensive income and cash flows for the three months ended March 31, 2014 are not necessarily indicative of results that may be expected for the year ending December 31, 2014, or for any future period. Use of estimates. GAAP requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management's best knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, share-based compensation, inventory valuation, valuation of goodwill and purchased intangibles, valuation of long-lived assets and accounting for income taxes. Principles of consolidation. The condensed consolidated financial statements include the accounts of our wholly-owned subsidiaries. All significant inter-company accounts and transactions have been eliminated in consolidation. Concentration of credit risk. Financial instruments that may potentially subject us to concentrations of credit risk consist principally of cash equivalents and accounts receivable. Cash equivalents are maintained with several financial institutions and may exceed the amount of insurance provided on such balances. The majority of our accounts receivable are derived from sales to customers for commercial applications. We perform ongoing credit evaluations of our customers’ financial condition and limit the amount of credit extended when deemed necessary but generally require no collateral. We maintain reserves for potential credit losses. Our products are broadly distributed and there was no single customer accounting for 10% or more of revenues in the three months ended March 31, 2014. Additionally, there was no single customer accounting for 10% or more of accounts receivable at March 31, 2014 or December 31, 2013. We believe that we have no significant concentrations of credit risk at March 31, 2014. Dependence on suppliers. We have a supply agreement with one primary supplier for construction and supply of several sub-assemblies and inventory management of sub-assemblies used in our hardware products. There are no minimum purchase requirements. The contract may be terminated by either the supplier or by us without cause and at any time upon delivery of two months’ notice. Purchases from this supplier for the three months ended March 31, 2014 and 2013 totaled approximately $8.9 million and $7.2 million, respectively. There have been no material changes in our significant accounting policies as of and for the three months ended March 31, 2014, compared to the significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2013. Recently Adopted Accounting Standards In July 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU 2013-11 requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows: to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. We adopted the amendments in ASU 2013-11 in the first quarter of 2014. This update did not have a significant impact on our financial position, operating results or cash flows.

Organization and Summary of Significant Accounting Policies

Description of the Company. Omnicell, Inc. ("Omnicell," "our," "us," "we," or the "Company") was incorporated in California in 1992 under the name Omnicell Technologies, Inc. and reincorporated in Delaware in 2001 as Omnicell, Inc. Our major products are automated medication supply control systems and medical adherence solutions which are sold in our principal market, which is the healthcare industry. Our market is primarily located in the United States and Canada.

Basis of presentation. These interim condensed consolidated financial statements are unaudited but reflect, in the opinion of management, all adjustments, consisting of normal recurring adjustments and accruals, necessary to present fairly the financial position of Omnicell and its subsidiaries as of March 31, 2014, the results of their operations, comprehensive income and cash flows for the three months ended March 31, 2014 and 2013. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. generally accepted accounting principles (“GAAP”), have been condensed or omitted in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and accompanying notes included in our Annual Report on Form 10-K for the year ended December 31, 2013.

Our results of operations, comprehensive income and cash flows for the three months ended March 31, 2014 are not necessarily indicative of results that may be expected for the year ending December 31, 2014, or for any future period.

Use of estimates. GAAP requires management to make estimates and assumptions that affect the amounts reported in our consolidated financial statements and accompanying notes. Management bases its estimates on historical experience and various other assumptions believed to be reasonable. Although these estimates are based on management's best knowledge of current events and actions that may impact the company in the future, actual results may be different from the estimates. Our critical accounting policies are those that affect our financial statements materially and involve difficult, subjective or complex judgments by management. Those policies are revenue recognition, share-based compensation, inventory valuation, valuation of goodwill and purchased intangibles, valuation of long-lived assets and accounting for income taxes.

Principles of consolidation. The condensed consolidated financial statements include the accounts of our wholly-owned subsidiaries. All significant inter-company accounts and transactions have been eliminated in consolidation.

Concentration of credit risk. Financial instruments that may potentially subject us to concentrations of credit risk consist principally of cash equivalents and accounts receivable. Cash equivalents are maintained with several financial institutions and may exceed the amount of insurance provided on such balances. The majority of our accounts receivable are derived from sales to customers for commercial applications. We perform ongoing credit evaluations of our customers’ financial condition and limit the amount of credit extended when deemed necessary but generally require no collateral. We maintain reserves for potential credit losses. Our products are broadly distributed and there was no single customer accounting for 10% or more of revenues in the three months ended March 31, 2014. Additionally, there was no single customer accounting for 10% or more of accounts receivable at March 31, 2014 or December 31, 2013. We believe that we have no significant concentrations of credit risk at March 31, 2014.

Dependence on suppliers. We have a supply agreement with one primary supplier for construction and supply of several sub-assemblies and inventory management of sub-assemblies used in our hardware products. There are no minimum purchase requirements. The contract may be terminated by either the supplier or by us without cause and at any time upon delivery of two months’ notice. Purchases from this supplier for the three months ended March 31, 2014 and 2013 totaled approximately $8.9 million and $7.2 million, respectively.

There have been no material changes in our significant accounting policies as of and for the three months ended March 31, 2014, compared to the significant accounting policies described in our Annual Report on Form 10-K for the year ended December 31, 2013.

Recently Adopted Accounting Standards

In July 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists. ASU 2013-11 requires an entity to present an unrecognized tax benefit, or a portion of an unrecognized tax benefit, as a reduction to a deferred tax asset for a net operating loss carryforward, a similar tax loss, or a tax credit carryforward, except as follows: to the extent a net operating loss carryforward, a similar tax loss, or a tax credit carryforward is not available at the reporting date under the tax law of the applicable jurisdiction to settle any additional income taxes that would result from the disallowance of a tax position or the tax law of the applicable jurisdiction does not require the entity to use, and the entity does not intend to use, the deferred tax asset for such purpose, the unrecognized tax benefit should be presented in the financial statements as a liability and should not be combined with deferred tax assets. We adopted the amendments in ASU 2013-11 in the first quarter of 2014. This update did not have a significant impact on our financial position, operating results or cash flows.