Annual report pursuant to Section 13 and 15(d)

Revenue - Revenue by Timing (Details)

v3.22.0.1
Revenue - Revenue by Timing (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]      
Total revenue $ 1,318,053 $ 948,379 $ 1,900,371
Goods and services transferred over time      
Disaggregation of Revenue [Line Items]      
Total revenue 1,153,136 833,449  
Goods and services transferred at a point in time      
Disaggregation of Revenue [Line Items]      
Total revenue 164,917 114,930  
Total center revenue      
Disaggregation of Revenue [Line Items]      
Total revenue 1,286,634 929,966 1,851,345
Total center revenue | Goods and services transferred over time      
Disaggregation of Revenue [Line Items]      
Total revenue 1,121,717 815,036  
Total center revenue | Goods and services transferred at a point in time      
Disaggregation of Revenue [Line Items]      
Total revenue 164,917 114,930  
Other revenue      
Disaggregation of Revenue [Line Items]      
Total revenue 31,419 18,413 $ 49,026
Other revenue | Goods and services transferred over time      
Disaggregation of Revenue [Line Items]      
Total revenue 31,419 18,413  
Other revenue | Goods and services transferred at a point in time      
Disaggregation of Revenue [Line Items]      
Total revenue $ 0 $ 0