XML 62 R51.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Deferred revenue (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2017
--- | --- | --- | ---
Revenue Recognition [Abstract] |  |  |
Short-term deferred revenue | $ 95,709 | $ 78,774 |
Deferred service revenue, cost of sales, current |  | 16,900 | $ 15,700
Long-term deferred revenue | $ 8,806 | $ 10,623 |

X
- Definition Contract with Customer, Liability, Deferred Revenue, Current + References No definition available. + Details
Name: | omcl_ContractwithCustomerLiabilityDeferredRevenueCurrent
Namespace Prefix: | omcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contract with Customer, Liability, Deferred Revenue, Noncurrent + References No definition available. + Details
Name: | omcl_ContractwithCustomerLiabilityDeferredRevenueNoncurrent
Namespace Prefix: | omcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Deferred Cost of Services, Current + References No definition available. + Details
Name: | omcl_DeferredCostofServicesCurrent
Namespace Prefix: | omcl_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_RevenueRecognitionAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration