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Basis of Presentation and Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]  
Schedule of Contract and Contract - Related Liabilities
The following table summarizes the activity related to contract and contract-related liabilities:

 Outstanding Chip LiabilityLoyalty ProgramCustomer Advances and Other
 2021 20202021 20202021 2020
 (In thousands)
Balance at January 1$212,671 $314,570 $139,756 $126,966 $382,287 $481,095 
Balance at September 30177,066 350,848 142,969 138,785 662,096 359,877 
Increase / (decrease)$(35,605)$36,278 $3,213 $11,819 $279,809 $(121,218)