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Variable Interest Entities (VIEs) - Condensed Consolidating Schedules of Statements of Comprehensive Income (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 02, 2016 | Oct. 03, 2015 | Jul. 04, 2015 | Apr. 04, 2015 | Jan. 03, 2015 | Jun. 28, 2014 | Mar. 29, 2014 | Sep. 27, 2014 | Jan. 02, 2016 | Jan. 03, 2015 | Dec. 28, 2013
Statement of Comprehensive Income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 167,273 | $ 152,575 | $ 155,726 | $ 154,537 | $ 161,788 | $ 140,923 | $ 139,814 | $ 144,118 | $ 630,111 | $ 586,643 | $ 547,245
Cost of goods sold |  |  |  |  |  |  |  |  | 220,128 | 195,864 | 188,418
Gross profit | 101,745 | 102,232 | 102,901 | 103,105 | 109,159 | 93,095 | 92,301 | 96,224 | 409,983 | 390,779 | 358,827
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  |  |  |  |  |  |  | 252,725 | 241,016 | 215,469
Research and development |  |  |  |  |  |  |  |  | 56,617 | 56,581 | 55,631
Litigation settlement, award and/or defense costs |  |  |  |  |  |  |  |  | (19,609) | (10,331) | 8,010
Total operating expenses |  |  |  |  |  |  |  |  | 289,733 | 287,266 | 279,110
Operating income | 36,892 | 28,140 | 27,841 | 27,377 | 32,647 | 18,405 | 30,193 | 22,268 | 120,250 | 103,513 | 79,717
Non-operating expense |  |  |  |  |  |  |  |  | 3,905 | 1,472 | 3,991
Income before provision for income taxes |  |  |  |  |  |  |  |  | 116,345 | 102,041 | 75,726
Provision for income taxes |  |  |  |  |  |  |  |  | 34,845 | 27,678 | 20,005
Net income including noncontrolling interest |  |  |  |  |  |  |  |  | 81,500 | 74,363 | 55,721
Net income (loss) attributable to the noncontrolling interest |  |  |  |  |  |  |  |  | (1,800) | 1,845 | (2,660)
Net income attributable to Masimo Corporation stockholders | $ 24,101 | $ 19,325 | $ 19,351 | $ 20,523 | $ 21,221,000 | $ 13,802,000 | $ 22,632,000 | $ 14,863,000 | 83,300 | 72,518 | 58,381
Masimo Corp |  |  |  |  |  |  |  |  |  |  |
Statement of Comprehensive Income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  |  | 586,643 | 547,245
Cost of goods sold |  |  |  |  |  |  |  |  | 226,788 | 201,334 | 193,775
Gross profit |  |  |  |  |  |  |  |  | 403,323 | 385,309 | 353,470
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  |  |  |  |  |  |  | 250,627 | 238,674 | 213,374
Research and development |  |  |  |  |  |  |  |  | 50,292 | 53,449 | 51,762
Litigation settlement, award and/or defense costs |  |  |  |  |  |  |  |  | (19,609) | (8,010) | 8,010
Total operating expenses |  |  |  |  |  |  |  |  | 281,310 | 284,113 | 273,146
Operating income |  |  |  |  |  |  |  |  | 122,013 | 101,196 | 80,324
Non-operating expense |  |  |  |  |  |  |  |  | 3,910 | 1,505 | 3,991
Income before provision for income taxes |  |  |  |  |  |  |  |  | 118,103 | 99,691 | 76,333
Provision for income taxes |  |  |  |  |  |  |  |  | 34,803 | 27,173 | 17,952
Net income including noncontrolling interest |  |  |  |  |  |  |  |  | 83,300 | 72,518 | 58,381
Net income attributable to Masimo Corporation stockholders |  |  |  |  |  |  |  |  | 83,300 | 72,518 | 58,381
Variable Interest Entity, Primary Beneficiary [Member] |  |  |  |  |  |  |  |  |  |  |
Statement of Comprehensive Income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 6,910 | 5,970 | 5,732
Cost of goods sold |  |  |  |  |  |  |  |  | 0 | 0 | 0
Gross profit |  |  |  |  |  |  |  |  | 6,910 | 5,970 | 5,732
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  |  |  |  |  |  |  | 2,348 | 2,842 | 2,470
Research and development |  |  |  |  |  |  |  |  | 6,325 | 3,132 | 3,869
Litigation settlement, award and/or defense costs |  |  |  |  |  |  |  |  | 0 | (2,321) | 0
Total operating expenses |  |  |  |  |  |  |  |  | 8,673 | 3,653 | 6,339
Operating income |  |  |  |  |  |  |  |  | (1,763) | 2,317 | (607)
Non-operating expense |  |  |  |  |  |  |  |  | (571) | (33) | 0
Income before provision for income taxes |  |  |  |  |  |  |  |  | (1,192) | 2,350 | (607)
Provision for income taxes |  |  |  |  |  |  |  |  | 42 | 505 | 2,053
Net income including noncontrolling interest |  |  |  |  |  |  |  |  | (1,234) | 1,845 | (2,660)
Net income attributable to Masimo Corporation stockholders |  |  |  |  |  |  |  |  | (1,234) | 1,845 | (2,660)
Cercacor Elim |  |  |  |  |  |  |  |  |  |  |
Statement of Comprehensive Income [Abstract] |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | (6,910) | (5,970) | (5,732)
Cost of goods sold |  |  |  |  |  |  |  |  | (6,660) | (5,470) | (5,357)
Gross profit |  |  |  |  |  |  |  |  | (250) | (500) | (375)
Operating expenses: |  |  |  |  |  |  |  |  |  |  |
Selling, general and administrative |  |  |  |  |  |  |  |  | (250) | (500) | (375)
Total operating expenses |  |  |  |  |  |  |  |  | (250) | (500) | (375)
Non-operating expense |  |  |  |  |  |  |  |  | 566 |  |
Income before provision for income taxes |  |  |  |  |  |  |  |  | (566) |  |
Net income including noncontrolling interest |  |  |  |  |  |  |  |  | (566) |  |
Net income (loss) attributable to the noncontrolling interest |  |  |  |  |  |  |  |  | (1,800) | 1,845 | (2,660)
Net income attributable to Masimo Corporation stockholders |  |  |  |  |  |  |  |  | $ 1,234 | $ (1,845) | $ 2,660

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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 + Details
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=51677171&loc=d3e3636-108311 + Details
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