Income Taxes	9 Months Ended
Income Taxes	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company generally provides for income taxes in interim periods based on the estimated annual effective tax rate for the year, adjusting for discrete items in the quarter in which they arise. The annual effective tax rate before discrete items was 30.1% and 24.6% for the nine months ended September 30, 2020 and 2019, respectively. The Company’s effective tax rate for the nine months ended September 30, 2020 was based on best estimates, which may fluctuate through the remainder of the year due to the volatility and uncertainty of global economic conditions in connection with the COVID-19 pandemic. Due to continuing global operational centralization activities and legal entity rationalization, the Company recognized gain on the sale of certain intellectual property rights by Aesynt B.V. to Omnicell, Inc., which resulted in a tax expense, net of tax benefit, of $9.6 million during the nine months ended September 30, 2019. In March 2020, Aesynt B.V. subsequently merged with and into Aesynt Holding B.V., with Aesynt Holding B.V. surviving and changing its name to Omnicell B.V. Due to continuing global operational centralization activities in the third quarter of 2020, the Company recognized a gain on Omnicell Limited transferring its shares in Omnicell GmbH to Omnicell International, LLC, which resulted in a discrete tax expense of $0.5 million during the nine months ended September 30, 2020. The Company also recognized a discrete tax benefit related to equity compensation in the amount of $4.2 million and $8.1 million for the nine months ended September 30, 2020 and 2019, respectively. The 2020 annual effective tax rate before discrete items differed from the statutory rate of 21% primarily due to the unfavorable impact of state income taxes, non-deductible compensation and equity charges, and non-deductible expenses, partially offset by the favorable impact of research and development credits and foreign derived intangible income (“FDII”) benefit deduction. The 2019 annual effective tax rate before discrete items differed from the statutory rate of 21% primarily due to the unfavorable impact of state income taxes, non-deductible equity charges, and non-deductible expenses, partially offset by the favorable impact of research and development credits, foreign rate differential, and FDII benefit deduction. On March 27, 2020, the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”) was signed into law in response to the COVID-19 pandemic. The CARES Act, among other provisions, includes provisions related to refundable payroll tax credits, deferment of the employer portion of certain payroll taxes, net operating losses carryback periods, alternative minimum tax credit refunds, modification to net interest expense deduction limitation, and technical amendments to tax depreciation methods for qualified improvement property placed in service after December 31, 2017. The provisions of the CARES Act did not have a material impact on the Company’s income taxes. As of September 30, 2020 and December 31, 2019, the Company had gross unrecognized tax benefits of $17.6 million and $16.8 million, respectively. It is the Company’s policy to classify accrued interest and penalties as part of the unrecognized tax benefits, but to record interest and penalties in interest and other income (expense), net in the Condensed Consolidated Statements of Operations. As of September 30, 2020 and December 31, 2019, the amount of accrued interest and penalties was $1.2 million and $1.0 million, respectively. The Company files income tax returns in the United States and various states and foreign jurisdictions. In the normal course of business, the Company is subject to examination by taxing authorities, including major jurisdictions such as the United States, Germany, Italy, Netherlands, and the United Kingdom. With few exceptions, as of September 30, 2020, the Company was no longer subject to United States, state, and foreign examination for years before 2016, 2015, and 2015, respectively. Although the Company believes it has adequately provided for uncertain tax positions, the provisions on these positions may change as revised estimates are made or the underlying matters are settled or otherwise resolved. It is not possible at this time to reasonably estimate changes in the unrecognized tax benefits within the next twelve months.

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.