Public Offering of Units and Certain Provisions of the Partnership Agreement (Distribution) (Details Textuals) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended				12 Months Ended						3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 General Partner [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Distribution Per Unit [Member] Thirteen Percent [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Distribution Per Unit [Member] Twenty three Percent [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Distribution Per Unit [Member] Fortyeight Percent [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Percentage [Member] Thirteen Percent [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Percentage [Member] Twenty three Percent [Member]	Dec. 31, 2013 General Partner [Member] Incentive Distribution Percentage [Member] Fortyeight Percent [Member]	Mar. 31, 2014 Preferred Unit [Member]	Dec. 31, 2013 Preferred Unit [Member]
Distribution Made to Member or Limited Partner [Line Items]
Distribution per unit excess distribution level	$ 0.2125
Percentage of distribution allocated to limited partners				100.00%
Number Of Days Before Distribution	45
Incentive Distibution Excess Per Unit Amount					$ 0.25	$ 0.3125	$ 0.375
Incentive Distribution Percentage Levels								13.00%	23.00%	48.00%
Incentive Distribution, Distribution	$ 6,390	$ 4,489	$ 2,372
Distribution Made to Limited Partner, Distributions Paid, Per Unit	$ 1.33	$ 1.31	$ 1.17
Distribution Made to Limited Partner, Distributions Declared, Per Unit												$ 0.36
Preferred Stock Dividend Rate Per Dollar Amount Paid In Kind												$ 0.36
Dividends Payable, Date to be Paid											Feb. 14, 2014