STOCK‐BASED COMPENSATION - Restricted Stock Units Activity (Details) - $ / shares	1 Months Ended		12 Months Ended
	Aug. 31, 2025	Jan. 31, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Shares
Forfeited (in shares)	(462,500)
RSUs
Shares
Unvested (in shares)		38,613,554	38,613,554
Granted (in shares)			2,838,393
Forfeited (in shares)		(38,860)	(2,168,663)
Vested and released (in shares)			(7,111,529)
Vested but unreleased (in shares)			(12,327,317)
Unvested (in shares)			19,844,438	38,613,554
Vested but unreleased (in shares)			12,327,317
Outstanding (in shares)			32,171,755	38,627,023
Weighted-Average Grant Date Fair Value
Unvested (in dollars per share)		$ 34.97	$ 34.97
Granted (in dollars per share)			38.76	$ 38.07	$ 33.21
Forfeited (in dollars per share)			37.19
Vested and released (in dollars per share)			36.52
Vested but unreleased (in dollars per share)			37.41
Unvested (in dollars per share)			33.27	$ 34.97
Vested but unreleased (in dollars per share)			37.41
Outstanding (in dollars per share)			$ 34.86
Stock Price Target and GMS Performance RSUs
Shares
Unvested (in shares)		15,196,370	15,196,370
Granted (in shares)			0
Forfeited (in shares)			(462,500)
Vested and released (in shares)			(1,936,693)
Vested but unreleased (in shares)			(386,694)
Unvested (in shares)			12,410,483	15,196,370
Vested but unreleased (in shares)			386,694
Outstanding (in shares)			12,797,177
Weighted-Average Grant Date Fair Value
Unvested (in dollars per share)		$ 31.67	$ 31.67
Granted (in dollars per share)			0
Forfeited (in dollars per share)			33.33
Vested and released (in dollars per share)			36.00
Vested but unreleased (in dollars per share)			35.69
Unvested (in dollars per share)			30.81	$ 31.67
Vested but unreleased (in dollars per share)			35.69
Outstanding (in dollars per share)			$ 30.96
Other RSUs
Shares
Unvested (in shares)		23,417,184	23,417,184
Granted (in shares)			2,838,393
Forfeited (in shares)			(1,706,163)
Vested and released (in shares)			(5,174,836)
Vested but unreleased (in shares)			(11,940,623)
Unvested (in shares)			7,433,955	23,417,184
Vested but unreleased (in shares)			11,940,623
Outstanding (in shares)			19,374,578
Weighted-Average Grant Date Fair Value
Unvested (in dollars per share)		$ 37.11	$ 37.11
Granted (in dollars per share)			38.76
Forfeited (in dollars per share)			38.23
Vested and released (in dollars per share)			36.71
Vested but unreleased (in dollars per share)			37.47
Unvested (in dollars per share)			37.38	$ 37.11
Vested but unreleased (in dollars per share)			37.47
Outstanding (in dollars per share)			$ 37.44