Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Annual Payments Under Non-Cancelable Lease Agreements

At December 31, 2018, future minimum annual payments under non-cancelable lease agreements with original terms in excess of one year, and including payments required under operating leases for facilities we have vacated, are as follows:

	Total
2019	$	64,082
2020	53,138
2021	42,480
2022	26,445
2023	19,895
Thereafter	45,708
Total minimum payments	$	251,748