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091508 - Disclosure - Employee Benefit Plans, Asset Allocations (Details)
(http://intrawest.com/role/EmployeeBenefitPlansAssetAllocationsDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001587755 (http://www.sec.gov/CIK)
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2015-07-01 - 2016-06-30
2015-06-30
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]
Executive Plans [Member]Employee Plans [Member]Executive Plans [Member]Employee Plans [Member]
Defined Benefit Plan, Asset Categories [Axis]Defined Benefit Plan, Asset Categories [Axis]Defined Benefit Plan, Asset Categories [Axis]Defined Benefit Plan, Asset Categories [Axis]
Equity Securities [Member]Fixed Income Securities [Member]Cash [Member]Equity Securities [Member]Fixed Income Securities [Member]Cash [Member]Equity Securities [Member]Fixed Income Securities [Member]Cash [Member]Equity Securities [Member]Fixed Income Securities [Member]Cash [Member]
Asset Allocations [Abstract]
 
 
 
 
 
 
 
 
 
 
 
 
Target allocation
0.03  
0.12  
0.84  
0.4  
0.57  
0.03  
      
Actual allocation
0.04  
0.11  
0.85  
0.41  
0.55  
0.04  
0.04  
0.13  
0.83  
0.43  
0.54  
0.03