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Quarterly Financial Data (unaudited) - Quarterly Financial Data (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 28, 2013
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Sep. 28, 2013
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Jun. 29, 2013
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Mar. 30, 2013
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Dec. 29, 2012
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Sep. 29, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 28, 2013
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Dec. 29, 2012
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Dec. 31, 2011
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| Quarterly Financial Information Disclosure [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 |
| 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 income | 12,653 | 20,743 | 23,180 | 23,141 | 22,273 | 17,952 | 22,673 | 22,328 | 79,717 | 85,226 | 86,517 |
| Net income 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 |
| Net income per share attributable to Masimo Corporation stockholders: | |||||||||||
| Basic (in usd per share) | $ 0.16 | $ 0.28 | $ 0.30 | $ 0.29 | $ 0.26 | $ 0.24 | $ 0.31 | $ 0.27 | $ 1.03 | $ 1.08 | $ 1.07 |
| Diluted (in usd per share) | $ 0.16 | $ 0.27 | $ 0.30 | $ 0.28 | $ 0.26 | $ 0.24 | $ 0.30 | $ 0.27 | $ 1.02 | $ 1.07 | $ 1.05 |