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Commitments and Contingencies - Additional Information (Detail) $ in Millions	Jul. 02, 2016 USD ($)
Outstanding POs [Abstract]
Contractual Obligation	$ 103

X

- Definition

Outstanding POs [Abstract]

+ References

No definition available.

+ Details

Name:	irbt_OutstandingPOsAbstract
Namespace Prefix:	irbt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant