THE COMPANY - Additional Information (Detail)	Dec. 31, 2017 channel
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business channels	2

Number of business channels, consisting of the Company's primary portal outsourcing businesses and its software & services businesses.

No definition available.

Name:	egov_NumberOfBusinessChannels
Namespace Prefix:	egov_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant