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Accrued Liabilities (Tables)
 12 Months Ended
Dec. 31, 2015
Payables and Accruals [Abstract]  
Schedule of accrued liabilities
Accrued liabilities consisted of the following:
 

 
December 31,
(in thousands)
2015
 
2014
Sales incentive and advertising accruals
$
22,235

 
$
22,788

Vacation liability
7,001

 
6,568

Dividend payable
7,716

 
6,843

Labor related liabilities
7,720

 
6,598

Other
10,089

 
13,281


$
54,761

 
$
56,078