Other Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other Assets [Abstract]
Debt issuance costs, net	$ 22,203	$ 17,149	[1]
Deferred tax asset	13,933	2,832
Other	8,250	8,908
Total other noncurrent assets, net	$ 44,386	$ 28,889

[1] * See Note 16 for discussion of debt issuance costs.