Basis Of Presentation (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Basis Of Presentation [Abstract]
Distribution of limited partnership income	$ 8,600	$ 33,686
Previous amount of deferrable acquisition costs which was expensed in prior year	13,492
Amount of deferred acquisition costs for prior year if guidance had been applicable	$ 0		$ 2,616	$ 10,876