Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Operating Leases Payments

At December 31, 2018, the future minimum lease payments required under the non-cancellable operating leases were as follows (in thousands):

Year	Minimum Lease Payments
2019	$	19,843
2020	15,055
2021	11,492
2022	8,111
2023	5,365
Thereafter	7,203
Total	$	67,069