cm:Level2TextBlock: us-gaap:RevenueRecognitionSalesOfServices
Revenue Recognition, Sales of Services [Policy Text Block] |
us-gaap:RevenueRecognitionSalesOfServices |
Disclosure of accounting policy for revenue recognition for sales of a service. The entity also may disclose how it recognizes cost of sales for such a service transaction and its treatment of any unearned or deferred revenue that arises from the transaction. |
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us-gaap:RevenueRecognitionSalesOfServices |