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ACCUMULATED OTHER COMPREHENSIVE INCOME
 12 Months Ended
Mar. 31, 2020
Disclosure of analysis of other comprehensive income by item [abstract]  
ACCUMULATED OTHER COMPREHENSIVE INCOME
ACCUMULATED OTHER COMPREHENSIVE INCOME
 
 
 
Foreign currency
 
 
 
 
 
 
 
 
 
 
 
 
 
 
exchange differences
 
 
 
 
 
 
Net changes in
 
 
 
 
 
 
on translation of
 
 
Net changes in
 
 
financial assets
 
 
 
 
 
 
foreign operations
 
 
cash flow hedges
 
 
carried at FVOCI
 
 
 
Total


 
2020

 
2019

 
2020

 
2019

 
2020

 
2019

2020

 
2019

Balances, beginning of year
 
$
208.9

 
$
266.6

 
$
(10.5
)
 
$
(6.9
)
 
$
0.6

 
$
0.6

$
199.0

 
$
260.3

Other comprehensive income (loss)
 
17.0

 
(57.7
)
 
(22.8
)
 
(3.6
)
 
—

 
—

(5.8
)
 
(61.3
)
Balances, end of year
 
$
225.9

 
$
208.9

 
$
(33.3
)
 
$
(10.5
)
 
$
0.6

 
$
0.6

$
193.2

 
$
199.0