Commitments (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Summary of Minimum Annual Payments in Operating Lease Agreements

Our operating lease agreements require minimum annual payments as follows (in thousands):

Year Ending
December 31,
2018	$	6,231
2019		5,483
2020		4,515
2021		3,864
2022		2,377
Thereafter		1,201
	$	23,671