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Other Current Assets
 12 Months Ended
Dec. 31, 2021
Prepaid Expense and Other Assets, Current [Abstract]  
Other Current Assets Other Current Assets
Other current assets at December 31, 2021 and 2020, consisted of the following:
20212020
 (In thousands)
Prepaid expenses$70,520 $57,017 
Sales taxes receivable from customers5,058 4,588 
Other third party receivables3,921 3,530 
Short-term portion of capitalized costs to obtain and fulfill contracts910 646 
Credit card merchant account balance receivable681 848 
Accrued interest receivable206 355 
Other3,093 4,677 
Total$84,389 $71,661