v2.4.0.8
Variable Interest Entity (VIE) - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 6 Months Ended
Sep. 30, 2009
ExercisedOption
Feb. 28, 2009
Dec. 31, 2005
Jun. 29, 2013
Jun. 30, 2012
Jun. 29, 2013
Jun. 30, 2012
Dec. 29, 2012
Variable Interest Entity [Line Items]                
Noncontrolling interest       $ 174,000   $ 174,000   $ 2,589,000
Licensed rainbow parameters [Member]
                
Variable Interest Entity [Line Items]                
Percentage of royalty expense           10.00%    
Cercacor Laboratories, Inc. [Member]
                
Variable Interest Entity [Line Items]                
Option fees     7,500,000          
Number of exercised options for licenses 3              
License fees 2,500,000              
Minimum aggregate royalty payments       1,300,000 1,300,000 2,500,000 2,500,000  
Increase in royalties payable in current year           15,000,000    
Increase in the minimum aggregate annual royalties payment           2,000,000    
Percentage reimbursed   50.00%       60.00%    
Total expenses for additional services, material and supplies       1,100,000 900,000 2,100,000 1,600,000  
Noncontrolling interest       200,000   200,000   2,600,000
Total assets, net of intercompany eliminations       7,100,000   7,100,000   9,000,000
Intangible assets       4,500,000   4,500,000   4,200,000
Deferred tax assets               1,800,000
Property and equipment       2,300,000   2,300,000   2,500,000
Total liabilities, net of intercompany eliminations       1,700,000   1,700,000   2,000,000
Accounts receivable (payable) eliminated upon consolidation, net       (800,000)   (800,000)   200,000
Deferred revenue related to technology eliminated upon consolidation       $ 4,700,000   $ 4,700,000   $ 4,900,000