Noncontrolling Interests (Effect Of Changes In Ownership Interest In Subsidiaries On Equity)(Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Net income adjusted for noncontrolling interests	$ 63,303	$ 43,350
Transfers from the noncontrolling interests:
Net increase in equity for the acquisition of noncontrolling interests	10,932	0	(16,200)
Change from net income adjusted for noncontrolling interests and transfers from the noncontrolling interests	$ 74,235	$ 43,350