Allocation of Total Purchase Consideration (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified	Apr. 05, 2012
Business Combinations [Abstract]
Other assets, cash	$ 76

Business Acquisition, Purchase Price Allocation, Cash and Cash Equivalents

No definition available.

Name:	csod_BusinessAcquisitionPurchasePriceAllocationCashAndCashEquivalents
Namespace Prefix:	csod_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant