Concentrations (Tables)

12 Months Ended

Dec. 31, 2018

Risks And Uncertainties [Abstract]

Schedule of Revenue Derived from Customers

The Company’s revenue is derived from the following customers:

	2018		2017		2016
COSCO	$	412,276	$	387,680	$	424,806
Yang Ming Marine		235,557		141,518		121,576
MOL		162,646		123,333		117,891
Other		285,852		178,793		213,632
	$	1,096,331	$	831,324	$	877,905