Income Taxes Income Taxes - Deferred Tax Assets and Liabilities Table (details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Credit carryforwards	$ 14	$ 14
Net current deferred income tax assets	14	14
Depreciable property	(839)	(47,558)
Credit carryforwards	527	541
Other	3	(136)
Net long-term deferred income tax liabilities	(309)	(47,153)
Total net deferred income tax liabilities	$ (295)	$ (47,139)