Income Taxes	3 Months Ended
Mar. 31, 2019
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 23.3% and 18.3% for the three months ended March 31, 2019 and 2018, respectively. As a result of global operational centralization activities during the three months ended March 31, 2018, the Company recognized $4.2 million of a discrete tax benefit associated with making a check-the-box election to treat Aesynt Coöperatief U.A. (Netherlands) as a US disregarded entity for the three months ended March 31, 2018. Due to continuing global operational centralization activities during the three months ended March 31, 2019, the Company recognized gain on the sale of certain intellectual property rights by Aesynt Coöperatief U.A. to Omnicell, Inc., which resulted in a discrete tax expense in the amount of $9.6 million during the three months ended March 31, 2019. The Company also recognized a discrete benefit related to equity compensation in the amount of $4.6 million and $0.9 million for the three months ended March 31, 2019 and March 31, 2018 respectively. The 2019 annual effective tax rate differed from the statutory rate of 21% primarily due to the unfavorable impact of the state income taxes, non-deductible equity charges, and non-deductible expenses, partially offset by the favorable impact of the research and development credits, foreign rate differential, and foreign derived intangible income (“FDII”) benefit deduction. The 2018 annual effective tax rate differed from the statutory rate of 21% primarily due to the favorable impact of the research and development credits and foreign rate differential, which were partially offset by the unfavorable impact of state income taxes, non-deductible expenses, and non-deductible equity charges. As of March 31, 2019 and December 31, 2018, the Company had gross unrecognized tax benefits of $14.3 million and $10.0 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 other income/expense in the consolidated statements of operations. As of March 31, 2019 and December 31, 2018, the amount of accrued interest and penalties was $1.5 million and $1.4 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 March 31, 2019, the Company is no longer subject to U.S., state, and foreign examination for years before 2015, 2014, and 2014, 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.

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 23.3% and 18.3% for the three months ended March 31, 2019 and 2018, respectively.

As a result of global operational centralization activities during the three months ended March 31, 2018, the Company recognized $4.2 million of a discrete tax benefit associated with making a check-the-box election to treat Aesynt Coöperatief U.A. (Netherlands) as a US disregarded entity for the three months ended March 31, 2018. Due to continuing global operational centralization activities during the three months ended March 31, 2019, the Company recognized gain on the sale of certain intellectual property rights by Aesynt Coöperatief U.A. to Omnicell, Inc., which resulted in a discrete tax expense in the amount of $9.6 million during the three months ended March 31, 2019. The Company also recognized a discrete benefit related to equity compensation in the amount of $4.6 million and $0.9 million for the three months ended March 31, 2019 and March 31, 2018 respectively.

The 2019 annual effective tax rate differed from the statutory rate of 21% primarily due to the unfavorable impact of the state income taxes, non-deductible equity charges, and non-deductible expenses, partially offset by the favorable impact of the research and development credits, foreign rate differential, and foreign derived intangible income (“FDII”) benefit deduction. The 2018 annual effective tax rate differed from the statutory rate of 21% primarily due to the favorable impact of the research and development credits and foreign rate differential, which were partially offset by the unfavorable impact of state income taxes, non-deductible expenses, and non-deductible equity charges.

As of March 31, 2019 and December 31, 2018, the Company had gross unrecognized tax benefits of $14.3 million and $10.0 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 other income/expense in the consolidated statements of operations. As of March 31, 2019 and December 31, 2018, the amount of accrued interest and penalties was $1.5 million and $1.4 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 March 31, 2019, the Company is no longer subject to U.S., state, and foreign examination for years before 2015, 2014, and 2014, 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.