Segment Reporting (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Segment assets
Total	$ 2,568,784	$ 2,039,977
Wholesale Segment
Segment assets
Total	773,803	811,535
GDSO
Segment assets
Total	1,184,978	622,860
Operating costs and expenses not allocated to operating segments
Segment assets
Total	$ 610,003	$ 605,582