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Long-Term Debt (Additional Information) (Detail) (USD $)
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3 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
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Sep. 30, 2012
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Jul. 31, 2012
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Dec. 31, 2011
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Sep. 30, 2011
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Sep. 30, 2012
Maximum [Member]
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Sep. 30, 2012
Minimum [Member]
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Sep. 30, 2012
Syndicated Credit Agreement [Member]
Y
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Apr. 24, 2012
Syndicated Credit Agreement [Member]
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Apr. 24, 2012
Syndicated Credit Agreement [Member]
Voting Equity Securities of HSNi U.S. Subsidiaries [Member]
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Apr. 24, 2012
Syndicated Credit Agreement [Member]
Voting Equity Securities of First-Tier Foreign Subsidiaries [Member]
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Apr. 24, 2012
Syndicated Credit Agreement [Member]
Revolving Credit Facility [Member]
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Jul. 31, 2012
Syndicated Credit Agreement [Member]
Term Loan [Member]
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Apr. 24, 2012
Syndicated Credit Agreement [Member]
Term Loan [Member]
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Sep. 30, 2012
Secured Credit Agreement Terminated April Twenty Four Two Thousand Twelve [Member]
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Sep. 30, 2012
Term Loan [Member]
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| Debt Instrument [Line Items] | ||||||||||||||||
| Revolving credit facility | $ 600,000,000 | $ 350,000,000 | $ 250,000,000 | |||||||||||||
| Terms of debt, years | 5 | |||||||||||||||
| Secured rate | 100.00% | 65.00% | ||||||||||||||
| Revolving credit agreement, replaced amount, expire date | Jul. 31, 2013 | |||||||||||||||
| Maximum borrowing capacity | 850,000,000 | |||||||||||||||
| Expiration Date | Apr. 24, 2017 | |||||||||||||||
| Total long-term debt | 250,000,000 | 250,000,000 | 239,111,000 | 308,903,000 | 250,000,000 | |||||||||||
| Financing costs, capitalized | 5,500,000 | |||||||||||||||
| Amortization period of finance cost | 5 | |||||||||||||||
| Leverage ratio | 3.00 | 3.00 | ||||||||||||||
| Leverage ratio | 0.80 | |||||||||||||||
| Actual interest coverage ratio | 12.51 | 12.51 | ||||||||||||||
| LIBOR plus a predetermined margin, percentage | 2.25% | 1.50% | ||||||||||||||
| Base Rate plus a predetermined margin, percentage | 0.50% | |||||||||||||||
| Base Rate plus a predetermined margin, percentage | 1.25% | |||||||||||||||
| Term loan interest rate | 1.72% | |||||||||||||||
| Commitment fee ranging | 0.40% | 0.25% | ||||||||||||||
| Outstanding letters of credit issued under the revolving credit facility | 33,000,000 | 33,000,000 | ||||||||||||||
| Additional amount that could be borrowed under the revolving credit facility | 317,000,000 | 317,000,000 | ||||||||||||||
| Senior notes due 2016 | 240,000,000 | 240,000,000 | 240,000,000 | 240,000,000 | ||||||||||||
| Subordinated borrowing, interest rate | 11.25% | |||||||||||||||
| Senior Notes Redemption, Amount | 253,500,000 | |||||||||||||||
| Senior Notes Redemption, Percentage | 105.625% | |||||||||||||||
| Term loan | 250,000,000 | |||||||||||||||
| Redemption premium | 13,500,000 | |||||||||||||||
| Pre-tax charges associated with redemption of the Senior Notes | 18,309,000 | 18,627,000 | ||||||||||||||
| Write-off of unamortized issuance costs and original issue discount | $ 4,800,000 | |||||||||||||||