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Organization and Summary of Significant Accounting Policies (Details)
$ in Thousands
 1 Months Ended 9 Months Ended
Aug. 31, 2020
Sep. 30, 2021
USD ($)
segment
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Number of operating segments | segment   1    
Number of reportable segments | segment   1    
Accounting Standards Update [Extensible Enumeration] Accounting Standards Update 2020-06 [Member]      
Convertible senior notes, net   $ 482,822   $ 467,201
Additional paid in capital   (1,002,591)   (920,359)
Long-term deferred tax liabilities   (53,313)   (39,633)
Long-term deferred tax assets   (15,866)   (15,019)
Retained earnings   $ 354,590   $ 290,722
Cumulative effect of a change in accounting principle related to credit losses | Forecast        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Convertible senior notes, net     $ 75,400  
Additional paid in capital     72,700  
Long-term deferred tax liabilities     19,800  
Long-term deferred tax assets     500  
Retained earnings     $ 16,700