Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments under noncancelable operating leases

As of December 31, 2013, future minimum lease payments under noncancelable operating leases were as follows (in thousands):

Year
2014	$	47,097
2015	45,608
2016	42,876
2017	40,577
2018	38,626
Thereafter	285,146
	$	499,930

Schedule of future commitments to pay for usage of port facilities, marine consumables, services and maintenance contracts

At December 31, 2013, we have future commitments to pay for our usage of certain port facilities, marine consumables, services and maintenance contracts as follows (in thousands):

Year
2014	$	200,660
2015	139,540
2016	115,255
2017	117,663
2018	40,769
Thereafter	82,940
	$	696,827