Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Narratives) (Details)

v3.22.4
Summary of Significant Accounting Policies (Narratives) (Details)
 1 Months Ended 12 Months Ended
Mar. 31, 2018
USD ($)
boardMember
Dec. 31, 2022
USD ($)
performanceObligation
reportingUnit
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Nov. 30, 2022
USD ($)
Aug. 31, 2020
USD ($)
May 31, 2018
USD ($)
Non-controlling Interest              
Number of performance obligations | performanceObligation   1          
Allowance for doubtful accounts receivable, current   $ 2,600,000 $ 3,900,000        
Impairment of investments   0 0 $ 0      
Impairment of property and equipment   $ 5,100,000 0 0      
Number of reporting units | reportingUnit   2          
Goodwill impairment charges   $ 0 0 0      
Intangible asset impairment charges   0 0 0      
Investment in private companies   16,351,000 25,926,000 15,640,000      
Number of board members | boardMember 2            
Accumulated deficit   (118,927,000) (37,988,000)        
Income tax provision (benefit)   7,061,000 7,667,000 (5,401,000)      
Additional paid-in capital   $ (1,135,284,000) (1,131,628,000)        
Expected decrease in interest expense in 2021     22,100,000        
Impairment Long Lived Asset Held For Use Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag   impairments of property and equipment          
Cumulative Effect, Period of Adoption, Adjustment              
Non-controlling Interest              
Accumulated deficit       28,600,000      
Additional paid-in capital       108,500,000      
Convertible notes payable       87,500,000      
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit              
Non-controlling Interest              
Income tax provision (benefit)       900,000      
Cumulative Effect, Period of Adoption, Adjustment | Additional Paid-in Capital              
Non-controlling Interest              
Income tax provision (benefit)       $ 6,700,000      
Private Services Company              
Non-controlling Interest              
Ownership interest (as a percent) 43.00%            
Investment in private companies $ 1,300,000            
Convertible Notes due 2023              
Non-controlling Interest              
Face amount             $ 345,000,000
Interest rate (as a percent)             1.75%
Repurchase amount         $ 300,000,000    
Convertible Notes due 2023 | Convertible Notes Payable              
Non-controlling Interest              
Face amount   $ 45,000,000 345,000,000       $ 345,000,000
Interest rate (as a percent)             1.75%
Repurchase amount   300,000,000          
Convertible Notes due 2025              
Non-controlling Interest              
Repurchase amount         200,000,000    
Convertible Notes due 2025 | Convertible Notes Payable              
Non-controlling Interest              
Face amount   317,500,000 517,500,000     $ 517,500,000  
Interest rate (as a percent)           0.75%  
Repurchase amount         200,000,000    
Convertible Notes due 2027 | Convertible Notes Payable              
Non-controlling Interest              
Face amount   $ 575,000,000 $ 0   $ 575,000,000    
Interest rate (as a percent)         2.625%