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Revenue Recognition (Tables)
6 Months Ended
Jun. 30, 2019
Revenue Recognition [Abstract]  
Revenue Recognized From Liability Balances

Three months ended

Six months ended

June 30,

June 30,

2019

2018

2019

2018

Revenue recognized from gift card liability balance at the beginning of the year

$

6,615

$

6,289

$

31,318

$

30,529