XML 48 R24.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Variable Interest Entity (VIE) (Tables) | 6 Months Ended
--- | ---
Jul. 04, 2015
Variable Interest Entity [Abstract] |
Changes in Noncontrolling Interest for Cercacor |
| Six Months Ended July 4, 2015
Noncontrolling interest, beginning of period | $ | 1,742 |
Increase in additional paid-in capital of noncontrolling interest | 6 |
Net loss attributable to noncontrolling interest | 1,356 |
Noncontrolling interest, end of period | $ | 392 |

X
- Definition A tabular disclosure of the changes in the carrying amount of the entity's noncontrolling interests. + References No definition available. + Details
Name: | masi_NoncontrollingInterestTableTableTextBlock
Namespace Prefix: | masi_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Variable Interest Entity [Abstract] + References No definition available. + Details
Name: | masi_VariableInterestEntityAbstract
Namespace Prefix: | masi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration