XML 93 R78.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Income Taxes (Narrative) (Details) (USD $)
 12 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2009
Tax recovery resulted from internal reorganization $ 16,700,000    
Investment tax credits 32,200,000    
Unrecognized tax benefits of deferred tax asset offset by valuation allowance 20,900,000    
Net unrecognized tax benefits excluding portion offset by valuation allowance 112,000,000 65,400,000  
Interest recognized 3,000,000 1,400,000 1,000,000
Penalty recognized (reversed) (400,000) 1,100,000 200,000
Accrued interest 10,300,000 6,800,000  
Accrued penalties 15,800,000 12,000,000  
Increase (decrease) in gross unrecognized tax benefit in next 12 months 200,000 4,000,000  
Domestic Country [Member]
      
Non-capital loss carryforwards 44,400,000    
Minimum [Member] | Foreign Country [Member]
      
Loss carryforward expiration date 2012    
Maximum [Member] | Foreign Country [Member]
      
Loss carryforward expiration date 2030    
Foreign Country [Member]
      
Non-capital loss carryforwards 177,900,000    
Non-capital loss carry forward not subject to expiration 137,600,000    
Minimum [Member]
      
Investment tax credit expiration date 2012    
Maximum [Member]
      
Investment tax credit expiration date 2030    
StreamServe Inc. Acquisition [Member]
      
Accrued interest 0    
Accrued penalties $ 3,500,000