Goodwill and Intangible Assets - Purchased Intangible Assets (Details) - USD ($) $ in Thousands |
6 Months Ended | 12 Months Ended |
---|---|---|
Jun. 30, 2018 |
Dec. 30, 2017 |
|
Intangible assets with finite lives: | ||
Gross Carrying Amount | $ 142,649 | $ 155,758 |
Accumulated Amortization | (70,854) | (63,570) |
Net Carrying Amount | $ 71,795 | $ 92,188 |
Weighted average remaining useful life (in years) | 3 years 5 months 11 days | 3 years 10 months 8 days |
Customer relationships | ||
Intangible assets with finite lives: | ||
Gross Carrying Amount | $ 46,754 | $ 51,050 |
Accumulated Amortization | (16,666) | (15,007) |
Net Carrying Amount | $ 30,088 | $ 36,043 |
Weighted average remaining useful life (in years) | 5 years 1 month 20 days | 5 years 7 months 20 days |
Developed technology | ||
Intangible assets with finite lives: | ||
Gross Carrying Amount | $ 95,895 | $ 104,708 |
Accumulated Amortization | (54,188) | (48,563) |
Net Carrying Amount | $ 41,707 | $ 56,145 |
Weighted average remaining useful life (in years) | 2 years 2 months 22 days | 2 years 8 months 15 days |