Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
Mar. 31, 2022 | Dec. 31, 2021 |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Accumulated amortization | $ (28,588) | $ (26,417) |
Definite-lived intangible assets, Net carrying amount | 104,942 | |
Intangible assets, Gross carrying amount | 736,110 | 736,110 |
Intangible assets, Net carrying amount | 707,522 | 709,693 |
Broker-Dealer Relationships | | |
Intangible Assets [Line Items] | | |
Indefinite-lived intangible assets, Net carrying amount | 570,480 | 570,480 |
Voyant Enterprise Distribution Channel Customer Relationships | | |
Intangible Assets [Line Items] | | |
Indefinite-lived intangible assets, Net carrying amount | 32,100 | 32,100 |
Trade Names | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | 45,830 | 45,830 |
Definite-lived intangible assets, Accumulated amortization | (12,412) | (11,839) |
Definite-lived intangible assets, Net carrying amount | $ 33,418 | $ 33,991 |
Definite-lived intangible assets, Estimated remaining useful life | 15 years | 15 years |
Broker-Dealer License | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 11,550 | $ 11,550 |
Definite-lived intangible assets, Accumulated amortization | (3,128) | (2,984) |
Definite-lived intangible assets, Net carrying amount | $ 8,422 | $ 8,566 |
Definite-lived intangible assets, Estimated remaining useful life | 15 years | 15 years |
ATC Regulatory Status | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 23,300 | $ 23,300 |
Definite-lived intangible assets, Accumulated amortization | (6,310) | (6,019) |
Definite-lived intangible assets, Net carrying amount | $ 16,990 | $ 17,281 |
Definite-lived intangible assets, Estimated remaining useful life | 15 years | 15 years |
GFPC Adviser Relationships | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 14,250 | $ 14,250 |
Definite-lived intangible assets, Accumulated amortization | (3,011) | (2,757) |
Definite-lived intangible assets, Net carrying amount | $ 11,239 | $ 11,493 |
Definite-lived intangible assets, Estimated remaining useful life | 11 years | 11 years |
Voyant Non-enterprise Distribution Channel Customer Relationships | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 9,500 | $ 9,500 |
Definite-lived intangible assets, Accumulated amortization | (509) | (339) |
Definite-lived intangible assets, Net carrying amount | $ 8,991 | $ 9,161 |
Definite-lived intangible assets, Estimated remaining useful life | 13 years | 14 years |
OBS Adviser and Trust Relationships | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 9,500 | $ 9,500 |
Definite-lived intangible assets, Accumulated amortization | (1,566) | (1,378) |
Definite-lived intangible assets, Net carrying amount | $ 7,934 | $ 8,122 |
Definite-lived intangible assets, Estimated remaining useful life | 10 years | 11 years |
Voyant Trade Name | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 3,200 | $ 3,200 |
Definite-lived intangible assets, Accumulated amortization | (218) | (145) |
Definite-lived intangible assets, Net carrying amount | $ 2,982 | $ 3,055 |
Definite-lived intangible assets, Estimated remaining useful life | 10 years | 11 years |
Voyant Technology | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 16,000 | $ 16,000 |
Definite-lived intangible assets, Accumulated amortization | (1,333) | (889) |
Definite-lived intangible assets, Net carrying amount | $ 14,667 | $ 15,111 |
Definite-lived intangible assets, Estimated remaining useful life | 8 years | 9 years |
Voyant Non-compete Agreement | | |
Intangible Assets [Line Items] | | |
Definite-lived intangible assets, Gross carrying amount | $ 400 | $ 400 |
Definite-lived intangible assets, Accumulated amortization | (101) | (67) |
Definite-lived intangible assets, Net carrying amount | $ 299 | $ 333 |
Definite-lived intangible assets, Estimated remaining useful life | 2 years | 3 years |