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137 - Disclosure - Summary of Significant Accounting Policies - Accounts Receivable Allowance Activity (Detail)
(http://www.cynosure.com/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAccountsReceivableAllowanceActivity)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Accounting Policies [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Accounting Policies [Abstract]
 
 
 
Balance at beginning of year
3,181,000  
2,949,000  
1,803,000  
Additions
1,606,000  
2,599,000  
2,373,000  
Deductions
(1,486,000) 
(2,367,000) 
(1,227,000) 
Balance at end of year
3,301,000  
 
3,181,000  
 
2,949,000