Noncontrolling Interests In Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2012

Noncontrolling Interests In Subsidiaries [Abstract]

Changes Of Noncontrolling Interests In Subsidiaries

	Common
	Units
Balance at January 1, 2012	12,197,122
Redemption of common units for shares of common stock	(20,000)
Balance at June 30, 2012	12,177,122