Restructuring and Related Charges - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2013	Mar. 29, 2013	Jun. 28, 2013 Employees
Restructuring Cost and Reserve [Line Items]
Number of termination of employees			39
Restructuring accrual costs			$ 698
Restructuring charges	242	600	666
Restructuring charges in continued operations			742
Product cost of revenue [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			200
Operating expense [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			700
Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring accrual costs			698
Restructuring charges in continued operations			641
Severance and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges in continued operations			700
HFC business [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges in discontinued operations	200	400	527
Number of termination of employees			9
Number of terminated employees required to work end of TSA Period			3
Restructuring accrual costs			436
HFC business [Member] | Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges in discontinued operations			403
Restructuring accrual costs			341
HFC business [Member] | Contract termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges in discontinued operations			124
Restructuring accrual costs			95
Harmonic 2013 Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring accrual costs			698
Estimated leasehold improvements and furniture related restructuring			$ 149