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Other Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Schedule of Other Assets
Other assets consist of the following as of December 31, 2020 and 2021 (in thousands):
 December 31, 2020December 31, 2021
Prepaid expenses, net of current portion$22,418 $19,852 
Equity method investments15,795 15,582 
Cloud computing arrangements6,385 5,957 
Other investments2,527 3,576 
Tuition receivable, non-current3,585 2,466 
Other4,218 4,864 
Other assets$54,928 $52,297 
Changes in Company's Limited Partnership Investments
The following table illustrates changes in the Company’s limited partnership investments for the years ended December 31, 2020 and 2021 (in thousands):
20202021
Limited partnership investments, beginning of period$15,795 $15,795 
Capital contributions550 892 
Pro-rata share in the net income of limited partnerships1,862 4,925 
Distributions(2,412)(6,030)
Limited partnership investments, end of period$15,795 $15,582