Information About Revenue and Geographic Areas (Details Textual)	3 Months Ended
Mar. 31, 2013
Information About Revenue and Geographic Areas (Textual) [Abstract]
Percentage of net revenue, accounted for major customer	10.00%

Entity-wide revenue, criteria for major customer, percentage of net revenue.

No definition available.

Name:	lnkd_EntityWideRevenueCriteriaForMajorCustomerPercentageOfNetRevenue
Namespace Prefix:	lnkd_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration