Stock Repurchases - Value of Common Stock Shares Repurchased (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
Equity, Class of Treasury Stock [Line Items] | |||
Private transaction | $ 14,927 | ||
Repurchase program | 1,201 | 3,099 | |
Exercise of stock options | 405 | 1,660 | 1,651 |
Total | 1,822 | 3,100 | 20,397 |
Stock Option [Member]
|
|||
Equity, Class of Treasury Stock [Line Items] | |||
Tax withholding obligations | 194 | 949 | 1,658 |
Restricted Stock [Member]
|
|||
Equity, Class of Treasury Stock [Line Items] | |||
Tax withholding obligations | $ 1,628 | $ 950 | $ 713 |