Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%
Pre-tax unrecognized compensation cost	$ 399.3
Weighted average period for recognizing compensation cost (in years)	2 years
Closing stock price (in dollars per share)	$ 84.30
In the money options exercisable (in shares)	1,002
Capitalized Internal Use Software
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional stock based compensation	$ 31.3	$ 32.4	$ 29.6
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Total pre-tax intrinsic value of options exercised		$ 0.6	$ 1.0
Stock options | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	4 years
ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%	0.00%	0.00%
Weighted average fair value of equity instruments other than options granted (in dollars per share)	$ 33.26	$ 36.17	$ 32.30
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of equity instruments other than options granted (in dollars per share)	$ 97.40	$ 114.56	$ 100.58
Each DSU receives this number of shares of common stock upon vesting (in whole numbers)	1
Holder elect to defer vested shares period, minimum (in years)	1 year
Holder elect to defer vested shares period, maximum (in years)	10 years
The amount typically vested by anniversary grant date (percentage)	100.00%
Director's minimum period of service before vesting accelerates (in years)	1 year
Total pre-tax intrinsic value end of year	$ 4.9	$ 4.1	$ 0.9
Total fair value of vested and distributed	$ 3.3	$ 2.7	$ 0.7
Unvested deferred stock units (in shares)	27,306
Aggregate intrinsic value	$ 2.3
Weighted average contractual remaining life (in years)	4 months 24 days
Granted (in shares)	27,000
Deferred Stock Units | Director Vesting Acceleration
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage	100.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of equity instruments other than options granted (in dollars per share)	$ 107.17	$ 99.09	$ 92.42
Total pre-tax intrinsic value end of year	$ 227.1	$ 226.4	$ 192.5
Total fair value of vested and distributed	231.7	$ 233.0	$ 198.9
Aggregate intrinsic value	$ 445.1
Weighted average contractual remaining life (in years)	2 years 3 months 18 days
Each RSU receives this number of shares of common stock upon vesting	1
Restricted stock unit vesting provision, minimum (in years)	3 years
Restricted stock unit vesting provision, maximum (in years)	4 years
Granted (in shares)	3,563,000
Number of equity instruments other than options unvested (in shares)	5,300,000
Restricted Stock Units (RSUs) | Linode
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	172,271
2013 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock approved for issuance under plan (in shares)	26,500,000
Common stock available for grant (in shares)	6,200,000
2009 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for grant (in shares)	3,800,000
1999 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum amount of shares available for issuance (in shares)	1,500,000
Aggregate amount of shares available, maximum (in shares)	20,000,000
Discount on fair market value for purchase of stock (in percentage)	15.00%
Share purchase interval term (in months)	6 months
Issuance of common stock under employee stock purchase plan (in shares)	700,000	600,000	700,000
Weighted average purchase price (in dollars per share)	$ 82.83	$ 92.05	$ 80.71
Total cash proceeds from shares purchased	$ 56.6	$ 59.7	$ 58.4
Amount withheld from employees for future purchases	$ 5.8