v2.4.0.8

Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Oct. 26, 2009
Stockholders' Equity Note [Abstract] |  |  |  |  |
Preferred stock, shares authorized (in shares) |  | 10,000,000 |  |  |
Preferred Stock, par value (in dollars per share) |  | $ 0.001 |  |  |
Common stock, shares authorized to repurchase (in shares) |  |  |  |  | 4,000,000
Remaining number of shares available to be repurchased |  | 1,667,724 |  |  |
Common stock repurchases (in shares) |  | 344,064 | 287,804 |  |
Payments for repurchase of common stock |  | $ 19,779 | $ 12,741 | $ 7,809 |
Stock Issued During Period, Shares, Acquisitions | 1,716,690 |  |  |  |
Stock Issued During Period, Shares, New Issues | 342,640 | 342,640 |  |  |
Stock Issued During Period, Value, New Issues | $ 15,225 | $ 15,225 |  |  |

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