v2.4.0.8
Variable Interest Entities (VIEs) - Condensed Consolidating Schedules of Statements of Comprehensive Income (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 12 Months Ended
Dec. 28, 2013
Sep. 28, 2013
Jun. 29, 2013
Mar. 30, 2013
Dec. 29, 2012
Sep. 29, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Statement of Comprehensive Income [Abstract]                      
Total revenue $ 142,435 $ 131,447 $ 137,422 $ 135,942 $ 132,161 $ 119,069 $ 122,775 $ 119,228 $ 547,245 $ 493,233 $ 438,988
Cost of goods sold                 188,418 166,982 144,854
Gross profit 90,536 87,479 91,232 89,581 87,181 78,333 81,432 79,305 358,827 326,251 294,134
Operating expenses:                      
Selling, general and administrative                 215,469 193,948 169,205
Research and development                 55,631 47,077 38,412
Litigation award and defense costs                 8,010 0 0
Total operating expenses                 279,110 241,025 207,617
Operating income 12,653 20,743 23,180 23,141 22,273 17,952 22,673 22,328 79,717 85,226 86,517
Non-operating income (expense)                 (3,991) (1,405) 14
Income before provision for income taxes                 75,726 83,821 86,531
Provision for (benefit from) income taxes                 20,005 21,883 22,478
Net income including noncontrolling interest                 55,721 61,938 64,053
Net (income) loss attributable to noncontrolling interest                 2,660 334 (353)
Net Income (loss) attributable to Masimo Corporation stockholders 9,313 15,602 17,038 16,428 15,007 13,794 17,697 15,774 58,381 62,272 63,700
Other comprehensive income, net of tax:                      
Foreign currency translation adjustments                 453 2,268 349
Comprehensive income attributable to Masimo Corporation stockholders                 58,834 64,540 64,049
Masimo Corp
                      
Statement of Comprehensive Income [Abstract]                      
Total revenue                   493,233 438,988
Cost of goods sold                 193,775 171,982 149,854
Gross profit                 353,470 321,251 289,134
Operating expenses:                      
Selling, general and administrative                 213,374 191,870 167,634
Research and development                 51,762 43,412 35,053
Litigation award and defense costs                 8,010    
Total operating expenses                 273,146 235,282 202,687
Operating income                 80,324 85,969 86,447
Non-operating income (expense)                   (1,404) 26
Income before provision for income taxes                 76,333 84,565 86,473
Provision for (benefit from) income taxes                 17,952 22,293 22,773
Net income including noncontrolling interest                 58,381 62,272 63,700
Net Income (loss) attributable to Masimo Corporation stockholders                 58,381 62,272 63,700
Other comprehensive income, net of tax:                      
Foreign currency translation adjustments                   2,268 349
Comprehensive income attributable to Masimo Corporation stockholders                 58,834 64,540 64,049
Cercacor
                      
Statement of Comprehensive Income [Abstract]                      
Total revenue                 5,732 5,375 5,375
Cost of goods sold                     0
Gross profit                 5,732 5,375 5,375
Operating expenses:                      
Selling, general and administrative                 2,470 2,453 1,946
Research and development                 3,869 3,665 3,359
Total operating expenses                 6,339 6,118 5,305
Operating income                 (607) (743) 70
Non-operating income (expense)                 0 (1) (12)
Income before provision for income taxes                 (607) (744) 58
Provision for (benefit from) income taxes                 2,053 (410) (295)
Net income including noncontrolling interest                 (2,660) (334) 353
Net Income (loss) attributable to Masimo Corporation stockholders                 (2,660) (334) 353
Other comprehensive income, net of tax:                      
Comprehensive income attributable to Masimo Corporation stockholders                 (2,660) (334) 353
Cercacor Elim
                      
Statement of Comprehensive Income [Abstract]                      
Total revenue                 (5,732) (5,375) (5,375)
Cost of goods sold                 (5,357) (5,000) (5,000)
Gross profit                 (375) (375) (375)
Operating expenses:                      
Selling, general and administrative                 (375) (375) (375)
Total operating expenses                 (375) (375) (375)
Net (income) loss attributable to noncontrolling interest                 2,660 334 (353)
Net Income (loss) attributable to Masimo Corporation stockholders                 2,660 334 (353)
Other comprehensive income, net of tax:                      
Comprehensive income attributable to Masimo Corporation stockholders                 $ 2,660 $ 334 $ (353)