Employee Benefits and Share-Based Compensation - 401(k) Plan (Details) - Other Postretirement Benefit Plan - Omnicell Plan $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) $ / Employee	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Defined Contribution Plan Disclosure [Line Items]
Maximum amount of employer contribution | $ / Employee	2,000
Employer matching contribution, percent of employee contribution	50.00%
401(k) contributions | $	$ 1.8	$ 1.3	$ 1.1