Commitments, Contingencies and Uncertainties (Tables)

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Schedule of Non-Cancellable Capital And Operating Lease Agreements Requiring Minimum Annual Rentals Payable

At December 31, 2017, the Company was committed under non-cancellable operating lease agreements requiring minimum annual rentals payable as follows (in thousands):

	Amount
2018	$	18,726
2019		16,196
2020		12,895
2021		10,697
2022		8,615
Thereafter		26,768
Total	$	93,897