Quarterly report pursuant to Section 13 or 15(d)

Recently Issued Accounting Pronouncements (Narrative) (Details)

v3.22.2.2
Recently Issued Accounting Pronouncements (Narrative) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Business Acquisition [Line Items]          
Revenues $ 250,836 $ 214,518 $ 681,463 $ 554,109  
Junior subordinated debentures 135,732   135,732   $ 134,940
Cash and cash equivalents 162,667 $ 216,567 162,667 $ 216,567 140,225
Prepaid expenses $ 16,659   $ 16,659   $ 25,855
Class A Common Stock [Member]          
Business Acquisition [Line Items]          
Common stock, shares authorized 30,000,000   30,000,000   30,000,000
Class B Common Stock [Member]          
Business Acquisition [Line Items]          
Common stock, shares authorized 4,000,000   4,000,000   4,000,000
Accounting Standards Update 2020-04 [Member] | LIBOR Indexed Junior Subordinated Debentures [Member]          
Business Acquisition [Line Items]          
Junior subordinated debentures $ 170,900   $ 170,900    
Accounting Standards Update 2020-04 [Member] | LIBOR Indexed Receivable-backed Notes Payable And Lines Of Credit [Member]          
Business Acquisition [Line Items]          
Receivable-backed notes payable and lines of credit $ 24,700   $ 24,700