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Stockholders' Equity and Stock-based Compensation - Share Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions		12 Months Ended
	Feb. 07, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 09, 2023	May 04, 2022	Nov. 03, 2021	Feb. 10, 2021	May 07, 2020	Oct. 30, 2019	Oct. 30, 2018	Feb. 12, 2018
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Stock repurchase program, authorized amount		$ 1,000.0			$ 100.0	$ 200.0	$ 200.0	$ 100.0	$ 100.0	$ 100.0	$ 100.0	$ 100.0
Stock repurchased and retired in period (in shares)		1.3	2.5	1.1
Stock repurchased and retired in period		$ 170.8	$ 317.3	$ 130.0
Stock repurchase program, remaining authorized repurchase amount		$ 83.7
Subsequent Event
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Additional authorized amount	$ 200.0
Stock repurchase program, authorized amount	$ 1,200.0

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