Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2011

Future Minimum Lease Payments under Noncancelable Operating Leases

As of December 31, 2011, future minimum lease payments under noncancelable operating leases were as follows (in thousands):

Year
2012	$	65,435
2013		62,881
2014		57,264
2015		56,210
2016		54,937
Thereafter		386,394
	$	683,121

Future Commitments to Pay for Usage of Certain Port Facilities, Marine Consumables, Services and Maintenance Contracts

At December 31, 2011, we have future commitments to pay for our usage of certain port facilities, marine consumables, services and maintenance contracts as follows (in thousands):

Year
2012	$	195,680
2013		159,602
2014		93,013
2015		86,145
2016		54,595
Thereafter		157,737
	$	746,772