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Financial and Other Guarantees (Tables)
12 Months Ended
Mar. 31, 2012
Notes To Financial Statements [Abstract]  
Schedule of Guarantor Obligations [Table Text Block]
Changes in our warranty liability during the periods presented are as follows:
 
 
2012
2011
2010
Balance, Beginning of Year
$
7,509

$
6,070

$
7,573

Warranties issued during the period
19,944

11,185

8,706

Settlements made during the period
(16,264
)
(9,746
)
(10,209
)
Balance, End of Year
$
11,189

$
7,509

$
6,070