Segment Information (Schedule of Revenue from External Customers Long-Lived Assets, by Geographical Areas) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Net Operating Revenue	$ 29,110	$ 17,991
United States [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	6,462	7,339
Canada [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	8,563	8,810
Europe [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	12,413	0
International Waters [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	1,571	1,749
Aruba [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	101	93
International [Member]
Segment Reporting Information [Line Items]
Net Operating Revenue	$ 22,648	$ 10,652