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Other Assets (Tables)
 3 Months Ended
Mar. 31, 2022
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Assets Other assets consist of the following (in thousands):
March 31, 2022December 31, 2021
Costs to obtain contracts - customer agreements$780,349 $703,080 
Costs to obtain contracts - incentives2,481 2,481 
Accumulated amortization of costs to obtain contracts(82,596)(74,529)
Unbilled receivables233,328 212,727 
Allowance for credit losses on unbilled receivables(2,593)(2,411)
Operating lease right-of-use assets95,851 92,707 
Equity investment186,100 63,826 
Other assets208,960 127,862 
Total$1,421,880 $1,125,743