Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies [Abstract]

Future minimum lease payments for operating leases

Future minimum lease payments for operating leases with initial or remaining noncancelable lease terms in excess of one year are as follows:

2019	$	18,911
2020		14,955
2021		10,972
2022		8,790
2023		7,490
Thereafter		23,155