Income Taxes (Federal Statutory Income Tax Rate To Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Income from continuing operations before income taxes	$ 84,849	$ 88,132	$ 50,154
Partnership income not subject to tax	(85,567)	(90,815)	(60,426)
Loss subject to income taxes	(718)	(2,683)	(10,272)
Tax benefit at federal statutory rate	(251)	(939)	(3,595)
State income taxes, net of federal benefit	660	460	123
Effects of unrecognized tax positions, federal and state	0	(8,205)	1,964
Return to provision, federal and state	88	(166)	72
Other	348	(355)	219
Total income tax expense (benefit) from continuing operations (1)	$ 845	$ (9,205)	$ (1,217)
Effective Income Tax Rate Reconciliation, Percent	1.00%