COMMITMENTS AND CONTINGENCIES (Details) (2001 IPO Litigation)	1 Months Ended
Nov. 30, 2001 item
2001 IPO Litigation
COMMITMENTS AND CONTINGENCIES
Number of officers against whom a case was filed	2
Number of other publicly traded companies against which similar class action cases were filed by other plaintiffs	300

Represents the number of other publicly traded companies against which similar class action cases were filed by other plaintiffs.

No definition available.

Name:	sons_LossContingenciesNumberOfOtherPubliclyTradedCompaniesAgainstWhichSimilarClassActionCasesWereFiledByOtherPlaintiffs
Namespace Prefix:	sons_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration