Income Taxes - Income Tax Temporary Differences Table (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Depreciable property	$ (4,418)	$ (44,725)
Credit carryforwards	512	526
Other intangible assets	(2,070)	(1,450)
Other	13	7
Net long-term deferred income tax liabilities	$ (5,963)	$ (45,642)	[1]

[1] Financial information has been recast to include the financial position and results attributable to the DBJV system. See Note 1 and Note 2.