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Other Current Liabilities (Tables)
 3 Months Ended
Mar. 31, 2016
Other Liabilities Disclosure [Abstract]  
Other Current Liabilities
Other current liabilities consisted of the following at March 31, 2016 and December 31, 2015:
In thousands
2016
 
2015
Amounts received in advance of revenue recognition
$
26,771

 
$
23,545

Other
796

 
779

Total
$
27,567

 
$
24,324