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Stock-Based Awards (Weighted Average Assumptions Used In Black-Scholes Option Pricing Model) (Details)
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3 Months Ended |
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Mar. 31, 2015
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| Stock Options And Stock Appreciation Rights [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Volatility factor |
29.20%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = hsni_StockOptionsAndStockAppreciationRightsMember |
| Risk-free interest rate |
1.49%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = hsni_StockOptionsAndStockAppreciationRightsMember |
| Expected term | 4 years 5 months 0 days |
| Dividend yield |
2.20%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = hsni_StockOptionsAndStockAppreciationRightsMember |
| ESPP [Member] | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Volatility factor |
21.10%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate / us-gaap_AwardTypeAxis = hsni_ESPPMember |
| Risk-free interest rate |
0.11%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate / us-gaap_AwardTypeAxis = hsni_ESPPMember |
| Expected term | 0 years 6 months 0 days |
| Dividend yield |
1.90%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate / us-gaap_AwardTypeAxis = hsni_ESPPMember |
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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