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Significant Accounting Policies Significant Accounting Policies (Tables)
9 Months Ended
Dec. 31, 2011
Accounting Policies [Abstract]  
Changes in redeemable noncontrolling interests
 
 
Nine Months Ended
 
 
December 31,
 
 
2011
 
2010
Balance, beginning of period
 
$
36,712

 
$
29,577

Net income attributable to redeemable noncontrolling interests
 
8,120

 
1,941

Net (redemptions/distributions paid to)/subscriptions received from noncontrolling interest holders
 
(16,016
)
 
776

Balance, end of period
 
$
28,816

 
$
32,294