General - Narrative (Details)			3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 15, 2026 USD ($) $ / shares	Aug. 21, 2026 USD ($)	Sep. 30, 2026 USD ($) subsidiary	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) segment subsidiary shares	Sep. 30, 2025 USD ($) shares	Dec. 31, 2027 USD ($)	Dec. 31, 2025 USD ($)	Sep. 10, 2024 USD ($)	May 11, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Subsidiary or equity method investee, number | subsidiary			16		16
Deferred revenue, revenue recognized					$ 377,838,000
Remaining performance obligation			$ 1,127,629,000		$ 1,127,629,000
Capitalized contract cost, amortization period (years)			4 years		4 years
Number of reportable segments | segment					1
Goodwill, impairment loss			$ 0	$ 0	$ 0	$ 0
Operating lease, impairment loss			0	$ 0	0	$ 0
Payments to acquire software			900,000
Amortization of capitalized internal-use software development costs			0		0
Impairment of capitalized internal-use software development costs					0
Software, Purchased
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Internal-use software assets		$ 17,810,000
Forecast
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Payments to acquire software							$ 16,910,000
Merger | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right to receive cash, per share (in dollars per share) | $ / shares	$ 49.75
Merger agreement, automatic extension period	3 months
Termination fee payable	$ 211,700,000
Termination fee receivable	$ 423,300,000
Cloud Hosting Service Providers
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Purchase obligation			390,849,000		390,849,000
Contractual minimum purchase commitment due in next 12 months			12,105,000		$ 12,105,000
Share-Based Payment Arrangement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares) | shares					9,036,241	8,626,352
2029 Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Principal amount including additional purchases from exercised options			$ 460,000,000		$ 460,000,000			$ 460,000,000
2029 Notes | Convertible Debt Securities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount (in shares) | shares					6,781,660	6,781,660
Convertible Debt | 2025 Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate, stated percentage										1.25%
Convertible Debt | 2029 Notes
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate, stated percentage									1.00%
Principal amount including additional purchases from exercised options									$ 460,000,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-10-01
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Revenue, remaining performance obligation, percentage			57.00%		57.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period			12 months		12 months