Debt - Revolving Credit Facilities (Details)	Jun. 30, 2020 USD ($)
Line of Credit Facility [Line Items]
Senior Secured Domestic Revolving Credit Facility	$ 1,676,700,000
Total Outstanding	294,200,000
Total Available	1,364,600,000
Senior Secured Domestic Revolving Credit Facility
Line of Credit Facility [Line Items]
Senior Secured Domestic Revolving Credit Facility	1,450,000,000.0
Total Outstanding	203,000,000.0
Total Available	1,229,100,000
Standby letters of credit issued	17,900,000
Senior Secured International Revolving Credit Facility
Line of Credit Facility [Line Items]
Senior Secured Domestic Revolving Credit Facility	178,300,000
Total Outstanding	78,100,000
Total Available	100,200,000
Other International Facilities
Line of Credit Facility [Line Items]
Senior Secured Domestic Revolving Credit Facility	48,400,000
Total Outstanding	13,100,000
Total Available	$ 35,300,000