Long-Term Incentive Plan Units (Narrative) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based LTIP expense	$ 393	$ 267	[1]	$ 179	[1]

[1] Conformed to current period presentation.