|
Income (Loss) Per Share - (Narrative) (Detail) (USD $)
|
3 Months Ended | |||
|---|---|---|---|---|
|
Mar. 31, 2013
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Non-vested shares with nonforfeitable rights to dividends | 101,782 | |||
| Shares outstanding | 44,918,336 | 52,327,672 | ||
| Outstanding stock options to purchase common stock, shares | 3,515,486 | 3,471,665 | 3,241,332 | |
| Outstanding stock options to purchase common stock, per share | $ 19.92 | $ 19.98 | $ 20.00 | |
| Outstanding warrants | 830,750 | 830,750 | 830,750 | |
| Warrants granted, exercise price per share | $ 20.00 | $ 20 | $ 20 | |
|
Restricted Stock [Member] | Common Class A [Member]
|
||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Unvested restricted shares outstanding (in shares) | 1,064,460 | 951,668 | 1,108,334 |
| X | ||||||||||
|
- Definition
Class of Warrant or Right Exercise Price of Warrants or Rights 1 No definition available.
|
| X | ||||||||||
|
- Definition
Number of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
This element represents nonvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents (whether paid or unpaid). Basic and dilutive earnings per share are generally disclosed for such shares using the two-class method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares issued which are neither cancelled nor held in the treasury. No definition available.
|