Business Segment and Geographic Area Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Other Revenue, Net	$ 110,468	$ 145,692	$ 243,898	$ 291,301
United States [Member]
Other Revenue, Net	80,213	105,607	164,151	205,325
Latin America [Member]
Other Revenue, Net	4,561	13,181	25,962	25,460
Canada [Member]
Other Revenue, Net	12,468	12,809	24,655	28,655
Australia and New Zealand [Member]
Other Revenue, Net	9,810	9,524	21,478	22,485
Europe [Member]
Other Revenue, Net	$ 3,416	$ 4,571	$ 7,652	$ 9,376