XML 37 R62.htm IDEA: XBRL DOCUMENT v2.4.1.9
FEDERAL AND STATE INCOME TAXES - Components of Net Deferred Tax Assets (Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Nov. 30, 2014
Nov. 30, 2013
Income Tax Disclosure [Abstract]    
Loss carryforwards $ 13,518us-gaap_DeferredTaxAssetsOperatingLossCarryforwards $ 9,919us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Deferred revenues 3,313us-gaap_DeferredTaxAssetsDeferredIncome 3,684us-gaap_DeferredTaxAssetsDeferredIncome
Accruals 4,649us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities 3,754us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities
Compensation related 3,556us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits 3,075us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits
Interest 4,077isca_DeferredTaxAssetsNonaccrualInterest 4,749isca_DeferredTaxAssetsNonaccrualInterest
Other 895us-gaap_DeferredTaxAssetsOther 901us-gaap_DeferredTaxAssetsOther
Deferred tax assets 30,008us-gaap_DeferredTaxAssetsGross 26,082us-gaap_DeferredTaxAssetsGross
Valuation allowance (7,832)us-gaap_DeferredTaxAssetsValuationAllowance (1,363)us-gaap_DeferredTaxAssetsValuationAllowance
Deferred tax assets, net of valuation allowance 22,176us-gaap_DeferredTaxAssetsNet 24,719us-gaap_DeferredTaxAssetsNet
Amortization and depreciation (369,033)isca_DeferredTaxLiabilitiesDepreciationAndAmortization (381,144)isca_DeferredTaxLiabilitiesDepreciationAndAmortization
Equity investment (4,285)us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates (6,620)us-gaap_DeferredTaxLiabilitiesInvestmentInNoncontrolledAffiliates
Other (345)us-gaap_DeferredTaxLiabilitiesOther (364)us-gaap_DeferredTaxLiabilitiesOther
Deferred tax liabilities (373,663)us-gaap_DeferredTaxLiabilities (388,128)us-gaap_DeferredTaxLiabilities
Net deferred tax liabilities (351,487)us-gaap_DeferredTaxAssetsLiabilitiesNet (363,409)us-gaap_DeferredTaxAssetsLiabilitiesNet
Deferred tax assets — current 2,789us-gaap_DeferredTaxAssetsNetCurrent 3,122us-gaap_DeferredTaxAssetsNetCurrent
Deferred tax liabilities — noncurrent (354,276)us-gaap_DeferredTaxLiabilitiesNoncurrent (366,531)us-gaap_DeferredTaxLiabilitiesNoncurrent
Net deferred tax liabilities $ (351,487)us-gaap_DeferredTaxAssetsLiabilitiesNet $ (363,409)us-gaap_DeferredTaxAssetsLiabilitiesNet