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Share Repurchase Program (Tables) | 12 Months Ended
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Dec. 31, 2017
Share Repurchase Program |
Schedule of share repurchase program | The following table sets forth our share repurchases under the 2016 and 2017 Share Repurchase Programs:
|  | Year Ended December 31,
|  | 2017 |  | 2016
Number of shares purchased |  |  | 2,365,836 |  |  | 673,626
Share repurchase cost (in thousands) |  | $ | 139,286 |  | $ | 22,296

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- Definition Tabular disclosure of share repurchases under the Share Repurchase Program. + References No definition available. + Details
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