|
Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Deferred tax assets: | ||
| Accrued expenses | $ 3.5 | $ 2.8 |
| Accounts receivable | 2.4 | 2.8 |
| Net operating loss carryforward | 125.5 | 110.5 |
| Stock-based compensation | 5.2 | 4.4 |
| Capital loss in investment in a domestic subsidiary | 10.2 | |
| Intangible assets | 16.9 | 25.8 |
| Credits | 1.0 | 0.8 |
| Other | 0.9 | 3.5 |
| Deferred Tax Assets Gross | 155.4 | 160.8 |
| Valuation allowance | (1.4) | (145.5) |
| Net deferred tax assets | 154.0 | 15.3 |
| Deferred tax liabilities: | ||
| Non-long lived intangible assets | (4.9) | (4.3) |
| Long-lived Intangible assets | (55.4) | (48.3) |
| Property and equipment | (1.2) | (2.0) |
| Deferred state taxes | (2.5) | (5.5) |
| Net deferred tax liabilities | (64.0) | (60.1) |
| Deferred Assets Liabilities Net | $ 90.0 | $ (44.8) |