EQUITY - Focus LLC Restricted Common Units and Focus LLC Incentive Units - Hurdle Rates (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Mar. 31, 2022	Jul. 31, 2018	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Focus LLC Restricted Common Units
Restricted Common Units
Outstanding at the beginning of the period					193,625
Vested					(1,162)
Outstanding at the end of the period			192,463		192,463
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period					$ 54.70
Vested					58.50
Outstanding at the end of the period			$ 54.68		$ 54.68
Focus LLC Incentive Units
Incentive Units
Outstanding at the beginning of the period					16,146,524
Granted					60,000
Exchanged					(40,607)
Outstanding at the end of the period			16,165,917		16,165,917
Vested at the end of the period					9,827,010
Weighted Average Hurdle Price
Outstanding at the beginning of the period					$ 26.44
Granted					43.07
Exchanged					25.83
Outstanding at the end of the period			$ 26.51		26.51
Vested at the end of the period			$ 20.54		$ 20.54
Restricted Stock Units (RSUs)
Restricted Common Units
Outstanding at the beginning of the period					187,756
Forfeited					(15,713)
Vested					(78)
Outstanding at the end of the period			171,965		171,965
Weighted Average Grant Date Fair Value
Outstanding at the beginning of the period					$ 47.69
Forfeited					46.80
Vested					48.09
Outstanding at the end of the period			$ 47.77		$ 47.77
Market-Based Incentive Units
Incentive Units
Granted		3,845,000
Fair value of the stock option grants determined with assumptions
Vesting period		5 years
Threshold period		90 days
Threshold volume weighted average per share price trigger		$ 100
Hurdle Rate		$ 33.00
Incentive Units
Incentive Units
Outstanding at the end of the period			16,165,917		16,165,917
Vested at the end of the period					9,827,010
Fair value of the stock option grants determined with assumptions
Non-cash equity compensation expense			$ 5,754	$ 4,368	$ 15,867	$ 20,709
Incentive Units | Hurdle Rate $1.42
Incentive Units
Outstanding at the end of the period			421		421
Vested at the end of the period					421
Weighted Average Hurdle Price
Hurdle Rates					$ 1.42
Incentive Units | Hurdle Rate 5.50
Incentive Units
Outstanding at the end of the period			798		798
Vested at the end of the period					798
Weighted Average Hurdle Price
Hurdle Rates					$ 5.50
Incentive Units | Hurdle Rate 6.00
Incentive Units
Outstanding at the end of the period			386		386
Vested at the end of the period					386
Weighted Average Hurdle Price
Hurdle Rates					$ 6.00
Incentive Units | Hurdle Rate 7.00
Incentive Units
Outstanding at the end of the period			1,081		1,081
Vested at the end of the period					1,081
Weighted Average Hurdle Price
Hurdle Rates					$ 7.00
Incentive Units | Hurdle Rate 9.00
Incentive Units
Outstanding at the end of the period			708,107		708,107
Vested at the end of the period					708,107
Weighted Average Hurdle Price
Hurdle Rates					$ 9.00
Incentive Units | Hurdle Rate 11.00
Incentive Units
Outstanding at the end of the period			813,001		813,001
Vested at the end of the period					813,001
Weighted Average Hurdle Price
Hurdle Rates					$ 11.00
Incentive Units | Hurdle Rate 12.00
Incentive Units
Outstanding at the end of the period			513,043		513,043
Vested at the end of the period					513,043
Weighted Average Hurdle Price
Hurdle Rates					$ 12.00
Incentive Units | Hurdle Rate 13.00
Incentive Units
Outstanding at the end of the period			540,000		540,000
Vested at the end of the period					540,000
Weighted Average Hurdle Price
Hurdle Rates					$ 13.00
Incentive Units | Hurdle Rate 14.00
Incentive Units
Outstanding at the end of the period			10,098		10,098
Vested at the end of the period					10,098
Weighted Average Hurdle Price
Hurdle Rates					$ 14.00
Incentive Units | Hurdle Rate 16.00
Incentive Units
Outstanding at the end of the period			45,191		45,191
Vested at the end of the period					45,191
Weighted Average Hurdle Price
Hurdle Rates					$ 16.00
Incentive Units | Hurdle Rate 17.00
Incentive Units
Outstanding at the end of the period			20,000		20,000
Vested at the end of the period					20,000
Weighted Average Hurdle Price
Hurdle Rates					$ 17.00
Incentive Units | Hurdle Rate 19.00
Incentive Units
Outstanding at the end of the period			527,928		527,928
Vested at the end of the period					527,928
Weighted Average Hurdle Price
Hurdle Rates					$ 19.00
Incentive Units | Hurdle Rate 21.00
Incentive Units
Outstanding at the end of the period			3,043,964		3,043,964
Vested at the end of the period					3,043,964
Weighted Average Hurdle Price
Hurdle Rates					$ 21.00
Incentive Units | Hurdle Rate 22.00
Incentive Units
Outstanding at the end of the period			808,917		808,917
Vested at the end of the period					808,917
Weighted Average Hurdle Price
Hurdle Rates					$ 22.00
Incentive Units | Hurdle Rate 23.00
Incentive Units
Outstanding at the end of the period			524,828		524,828
Vested at the end of the period					524,828
Weighted Average Hurdle Price
Hurdle Rates					$ 23.00
Incentive Units | Hurdle Rate 26.26
Incentive Units
Outstanding at the end of the period			12,500		12,500
Weighted Average Hurdle Price
Hurdle Rates					$ 26.26
Incentive Units | Hurdle Rate 27.00
Incentive Units
Outstanding at the end of the period			12,484		12,484
Vested at the end of the period					12,484
Weighted Average Hurdle Price
Hurdle Rates					$ 27.00
Incentive Units | Hurdle Rate 27.90
Incentive Units
Outstanding at the end of the period			1,910,483		1,910,483
Vested at the end of the period					912,817
Weighted Average Hurdle Price
Hurdle Rates					$ 27.90
Incentive Units | Hurdle Rate 28.50
Incentive Units
Outstanding at the end of the period			1,436,586		1,436,586
Vested at the end of the period					1,047,815
Weighted Average Hurdle Price
Hurdle Rates					$ 28.50
Incentive Units | Hurdle Rate 30.48
Incentive Units
Outstanding at the end of the period			30,000		30,000
Vested at the end of the period					20,000
Weighted Average Hurdle Price
Hurdle Rates					$ 30.48
Incentive Units | Hurdle Rate 33.00
Incentive Units
Outstanding at the end of the period			3,617,500		3,617,500
Vested at the end of the period					7,500
Weighted Average Hurdle Price
Hurdle Rates					$ 33.00
Incentive Units | Hurdle Rate 36.64
Incentive Units
Outstanding at the end of the period			30,000		30,000
Vested at the end of the period					30,000
Weighted Average Hurdle Price
Hurdle Rates					$ 36.64
Incentive Units | Hurdle Rate 43.07
Incentive Units
Outstanding at the end of the period			60,000		60,000
Weighted Average Hurdle Price
Hurdle Rates					$ 43.07
Incentive Units | Hurdle Rate 43.50
Incentive Units
Outstanding at the end of the period			30,000		30,000
Vested at the end of the period					30,000
Weighted Average Hurdle Price
Hurdle Rates					$ 43.50
Incentive Units | Hurdle Rate 44.71
Incentive Units
Outstanding at the end of the period			806,324		806,324
Vested at the end of the period					203,142
Weighted Average Hurdle Price
Hurdle Rates					$ 44.71
Incentive Units | Hurdle Rate 58.50
Incentive Units
Outstanding at the end of the period			662,277		662,277
Vested at the end of the period					5,489
Weighted Average Hurdle Price
Hurdle Rates					$ 58.50
Time based incentive units
Weighted Average Grant Date Fair Value
Granted					$ 14.16
Fair value of the stock option grants determined with assumptions
Expected term (in years)					5 years
Expected stock price volatility (in percent)					34.00%
Risk-free interest rate (in percent)					1.71%
Weighted average grant date fair value					$ 14.16
Time-based stock option awards
Weighted Average Grant Date Fair Value
Granted					$ 19.08
Fair value of the stock option grants determined with assumptions
Expected term (in years)					6 years 3 months 18 days
Expected stock price volatility (in percent)					34.00%
Risk-free interest rate (in percent)					1.85%
Weighted average grant date fair value					$ 19.08
IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Incremental Non-cash equity compensation expense recognized	$ 10,144
Threshold period	90 days
Highest 90-day VWAP is $80.00 or less | IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Vesting percentage	0.00%
Threshold period	90 days
Threshold volume weighted average per share price trigger	$ 80.00
Highest 90-day VWAP is $110.00 or more | IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Vesting percentage	100.00%
Threshold period	90 days
Threshold volume weighted average per share price trigger	$ 110.00
Exercised on and following the date of vesting | IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Vested stock options exercised (in percent)	25.00%
Exercised on and following the first anniversary of the date of vesting in July 2025 | IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Vested stock options exercised (in percent)	25.00%
Cumulative vested stock options exercised (in percent)	50.00%
Exercised on and following the second anniversary of the date of vesting in July 2026 | IPO | Market-Based Incentive Units
Fair value of the stock option grants determined with assumptions
Vested stock options exercised (in percent)	50.00%
Cumulative vested stock options exercised (in percent)	100.00%