General form of registration statement for all companies including face-amount certificate companies

Intangible assets, royalties, and goodwill - Intangible assets (Q1) (Details)

v3.21.1
Intangible assets, royalties, and goodwill - Intangible assets (Q1) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]      
Estimated Useful Life   10 years 2 months 12 days  
Gross Carrying Amount $ 14,690 $ 14,690 $ 14,690
Accumulated Amortization (1,958) (1,575) (49)
Net Carrying Amount $ 12,732 $ 13,115 14,641
Customer relationships      
Finite-Lived Intangible Assets [Line Items]      
Estimated Useful Life 7 years 7 years  
Gross Carrying Amount $ 7,190 $ 7,190 7,190
Accumulated Amortization (1,317) (1,059) (35)
Net Carrying Amount $ 5,873 $ 6,131 7,155
Trade name      
Finite-Lived Intangible Assets [Line Items]      
Estimated Useful Life 15 years 15 years  
Gross Carrying Amount $ 7,500 $ 7,500 7,500
Accumulated Amortization (641) (516) (14)
Net Carrying Amount $ 6,859 $ 6,984 $ 7,486