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Deferred Gross Profit | 3 Months Ended
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Mar. 31, 2014
Deferred Gross Profit [Abstract] |
Deferred Gross Profit [Text Block] | Deferred Gross Profit Deferred gross profit consists of the following (in thousands):
| March 31, 2014 |  | December 31, 2013
Sales of medication and supply dispensing systems and packaging equipment, delivered and invoiced but not yet installed | $ | 36,151 |  |  | $ | 29,040 |
Cost of revenues, excluding installation costs | (11,045 | ) |  | (9,083 | )
Deferred gross profit | $ | 25,106 |  |  | $ | 19,957 |

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- Details
Name: | omcl_DeferredGrossProfitAbstract
Namespace Prefix: | omcl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The gross profit not recognized in income that consists of sales of tangible products, which have been delivered and invoiced but not yet installed less the costs of revenues, excluding the installation costs. + References No definition available. + Details
Name: | omcl_DeferredGrossProfitTextBlock
Namespace Prefix: | omcl_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration