Quarterly report pursuant to Section 13 or 15(d)

Intangible Assets, Net - Summary of Intangible Assets (Detail)

v3.22.1
Intangible Assets, Net - Summary of Intangible Assets (Detail) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Indefinite-lived Intangible Assets [Line Items]    
Amortizing intangibles, Cost $ 552,037 $ 552,037
Accumulated Amortization (54,545) (40,737)
Amortizing intangibles, Net 497,492 511,300
Total intangibles, Cost 643,637 730,037
Total intangibles, Net 589,092 602,900
Imapairment of intangible assets excluding goodwill   (86,400)
Non Amortization Of Intangible Assets [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Total non-amortizing intangibles 91,600 178,000
Total intangibles, Net 91,600 91,600
Impairment   (86,400)
Broker/customer relationships [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortizing intangibles, Cost 541,100 541,100
Accumulated Amortization (52,948) (39,711)
Amortizing intangibles, Net $ 488,152 $ 501,389
Broker/customer relationships [Member] | Maximum [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortization Period (Years) 15 years 15 years
Broker/customer relationships [Member] | Minimum [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortization Period (Years) 8 years 8 years
Trade names [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortizing intangibles, Cost $ 10,937  
Accumulated Amortization (1,597)  
Amortizing intangibles, Net   $ 9,911
Trade names [Member] | Non Amortization Of Intangible Assets [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Total non-amortizing intangibles 91,600 178,000
Total intangibles, Net 91,600 91,600
Impairment   (86,400)
Trade names and other [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortizing intangibles, Cost   10,937
Accumulated Amortization   $ (1,026)
Amortizing intangibles, Net $ 9,340  
Trade names and other [Member] | Maximum [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortization Period (Years) 10 years 10 years
Trade names and other [Member] | Minimum [Member]    
Indefinite-lived Intangible Assets [Line Items]    
Amortization Period (Years) 5 years 5 years