Label	Element	Value
Cumulative effect of revenue recognition accounting change	rnwk_CumulativeEffectOfRevenueRecognitionAccountingChange	$ 1,024,000
Parent [Member]
Cumulative effect of revenue recognition accounting change	rnwk_CumulativeEffectOfRevenueRecognitionAccountingChange	1,024,000
Retained Earnings [Member]
Cumulative effect of revenue recognition accounting change	rnwk_CumulativeEffectOfRevenueRecognitionAccountingChange	$ 1,024,000