Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Components of Lease Expense

The components of lease expense for the three and six months ended June 30, 2019 were as follows:

	Three Months Ended June 30,  2019			Six Months Ended June 30,  2019
Operating lease cost	$	22.6		$	47.2
Variable lease cost		9.4			18.7
Short-term lease cost		1.9			2.3
Sublease income		(0.3	)		(0.6	)
Total lease cost	$	33.6		$	67.6

Schedule of Supplemental Cash Flow Information Related to Leases

Supplemental cash flow information related to leases for the six months ended June 30, 2019 was as follows:

	Six Months Ended June 30,  2019
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	43.9
Right-of-use assets obtained in exchange for lease obligations
Operating leases	$	18.1

Schedule of Future Lease Payments Under Operating Leases

As of June 30, 2019, the future lease payments under operating leases were as follows:

Year Ended December 31	Operating Leases
2019 (excluding the six months ended June 30, 2019)	$	41.6
2020		64.9
2021		48.9
2022		32.2
2023		22.8
2024 and thereafter		32.3
Total lease payments		242.7
Less: Amount representing interest		33.5
Present value of lease obligation	$	209.2
Weighted average remaining lease term	4.4 years
Weighted average discount rate		6.6	%

Future Minimum Rental Commitments Under Operating Lease

As of December 31, 2018, future minimum rental commitments under operating leases were as follows:

Year Ended December 31	Operating Leases
2019	$	77.8
2020		56.9
2021		41.3
2022		27.7
2023		21.4
2024 and thereafter		33.4
	$	258.5