|
Income Taxes (Schedule Of Significant Components Of Deferred Tax Liabilities And Assets) (Details) (USD $)
In Thousands, unless otherwise specified |
Jan. 31, 2012
|
Jan. 31, 2011
|
|---|---|---|
| Income Taxes [Abstract] | ||
| Depreciation and amortization | $ 48,111 | $ 40,431 |
| Capitalized marketing program costs | 4,008 | 2,639 |
| Convertible senior debentures interest | 0 | 27,514 |
| Goodwill | 2,711 | 3,061 |
| Deferred costs currently deductible | 14,468 | 13,914 |
| Other, net | 5,333 | 8,050 |
| Total deferred tax liabilities | 74,631 | 95,609 |
| Accrued liabilities | 43,521 | 52,137 |
| Loss carryforwards | 130,396 | 140,558 |
| Amortizable goodwill | 16,109 | 19,627 |
| Depreciation and amortization | 5,945 | 4,902 |
| Disallowed interest expense | 16,693 | 19,236 |
| Other, net | 15,960 | 12,381 |
| Deferred tax assets, gross, total | 228,624 | 248,841 |
| Less: valuation allowances | (158,613) | (186,586) |
| Total deferred tax assets | 70,011 | 62,255 |
| Net deferred tax liability | $ 4,620 | $ 33,354 |