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Noncontrolling Interests Noncontrolling Interests - Text Details (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Dec. 31, 2012
Noncontrolling Interest [Abstract]
Net income attributable to noncontrolling interests	$ 1,236	$ 930
Redeemable Noncontrolling Interest, Equity, Carrying Amount	20,774	17,438	19,468	19,287
Nonredeemable Noncontrolling Interest	$ 110		$ 171

As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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