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Segment Profit and Reconciliation to Operating Loss Earnings by Segment (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 28, 2012
Dec. 30, 2011
Dec. 31, 2010
Segment Reporting Information [Line Items]      
Total segment profit $ 184.7 $ 196.1 $ 502.4
Sales and marketing expenses (126.4) (163.0) (179.3)
General and administrative expenses (74.1) (80.9) (100.4)
Equity-based compensation (8.4) (11.9) (12.5)
Intangible asset amortization (5.4) (20.2) (27.0)
Restructuring and other charges (119.0) (20.3) (9.5)
Goodwill and IPR&D impairment   (102.7)  
Operating (loss) earnings (156.7) (202.9) 173.7
Optical Segment
     
Segment Reporting Information [Line Items]      
Total segment profit 89.6 93.3 218.3
Data segment
     
Segment Reporting Information [Line Items]      
Total segment profit (6.8) (6.6) 168.4
Access segment
     
Segment Reporting Information [Line Items]      
Total segment profit 31.9 34.1 34.5
Services segment
     
Segment Reporting Information [Line Items]      
Total segment profit 70.0 75.3 81.2
Discontinued 9200 Product
     
Segment Reporting Information [Line Items]      
Inventory and purchase commitments for discontinued 9200 product $ (8.1)