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Schedule II - Valuation and Qualifying Accounts (Notes) | 12 Months Ended
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Dec. 31, 2016
Valuation and Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts |
MASIMO CORPORATION VALUATION AND QUALIFYING ACCOUNTS Years ended December 31, 2016, January 2, 2016 and January 3, 2015 (in thousands)
Description | Balance at beginning of period |  | Additions charged to expense and other accounts |  | Amounts charged against reserve |  | Balance at end of period
Year ended December 31, 2016 |  |  |  |  |  |  |
| Allowance for doubtful accounts | $ | 1,967 |  |  | $ | 259 |  |  | $ | (528 | ) |  | $ | 1,698 |
| Sales returns, allowance and reserves | 710 |  |  | 2,320 |  |  | (2,425 | ) |  | 605 |
| Valuation allowance on deferred tax asset | 4,196 |  |  | — |  |  | (4,196 | ) |  | — |
Year ended January 2, 2016 |  |  |  |  |  |  |
| Allowance for doubtful accounts | 1,890 |  |  | 342 |  |  | (265 | ) |  | 1,967 |
| Sales returns, allowance and reserves | 472 |  |  | 2,621 |  |  | (2,383 | ) |  | 710 |
| Valuation allowance on deferred tax asset | 3,365 |  |  | 831 |  |  | — |  |  | 4,196 |
Year ended January 3, 2015 |  |  |  |  |  |  |
| Allowance for doubtful accounts | 1,833 |  |  | 583 |  |  | (526 | ) |  | 1,890 |
| Sales returns, allowance and reserves | 429 |  |  | 1,832 |  |  | (1,789 | ) |  | 472 |
| Valuation allowance on deferred tax asset | 3,563 |  |  | — |  |  | (198 | ) |  | 3,365 |

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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