Commitments and Contingencies Leases (Notes)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Leases of Lessee Disclosure [Text Block]

Lease Commitments

We have entered into various non-cancellable operating lease agreements for offices and facilities, passenger vehicles, and IT services throughout the world with original lease periods expiring primarily between 2019 and 2030 and remaining lease terms of 1 to 11 years. Some of these agreements have escalating rent payment provisions, as well as options to extend the lease for up to 5 years.

We recognize rent expense under such agreements on a straight-line basis. Our rent expense under operating leases was $11.0 million in 2018, $7.9 million in 2017 and $0.6 million in 2016. 

As of December 31, 2018, undiscounted future minimum lease payments under our non-cancelable operating leases are as follows over each of the next five years and thereafter (in millions):

2019	$	8.3
2020	8.6
2021	6.5
2022	5.9
2023	5.6
Thereafter	13.2
Total	$	48.1