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Stockholders' Equity (Details)			3 Months Ended		9 Months Ended
	Nov. 10, 2020 shares	Oct. 28, 2020	Sep. 30, 2020 USD ($) $ / shares	Sep. 30, 2019 USD ($) shares	Sep. 30, 2020 USD ($) $ / shares shares	Sep. 30, 2019 USD ($) shares	Oct. 31, 2020 USD ($)	Mar. 27, 2020 right $ / shares shares
Accumulated Other Comprehensive Income (Loss) [Line Items]
Treasury stock, acquired (in shares) | shares				700,000	2,600,000	700,000
Payments for repurchase of common stock				$ 50,000,000.0	$ 187,500,000	$ 52,300,000
Value of treasury stock acquired				50,000,000.0	$ 187,500,000	52,300,000
Number of rights authorized and declared per common share | right								1
Preferred stock par or stated value (in dollars per share) | $ / shares			$ 0.01		$ 0.01
Number of securities per each right | shares								0.001
Exercise price (in dollars per share) | $ / shares								$ 0.273
Subsequent Event
Accumulated Other Comprehensive Income (Loss) [Line Items]
Increase (decrease) in authorization amount							$ 168,700,000
Authorized amount of stock to be repurchased							$ 300,000,000.0
Stock split ratio		4
Number of additional shares received per share owned (in shares) | shares	3
Performance-based Restricted Stock Units
Accumulated Other Comprehensive Income (Loss) [Line Items]
Value of treasury stock acquired			$ 100,000	$ 0.0	$ 12,100,000	$ 3,200,000
February 2016 Program
Accumulated Other Comprehensive Income (Loss) [Line Items]
Remaining shares under share repurchase authorization			$ 131,300,000		$ 131,300,000

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