Stockholders' Equity (Details) - USD ($) |
12 Months Ended | ||||
|---|---|---|---|---|---|
Apr. 26, 2016 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
May 06, 2015 |
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| Class of Stock [Line Items] | |||||
| Stock repurchase program, extension of period in force | 1 year | ||||
| Common Stock | |||||
| Class of Stock [Line Items] | |||||
| Amount authorized to be repurchased | $ 50,000,000.0 | $ 50,000,000.0 | |||
| Stock repurchased and retired during period (in shares) | 1,012,823 | 1,798,199 | 966,595 | ||
| Weighted average cost per share (in dollars per share) | $ 20.98 | $ 19.51 | $ 16.06 | ||
| Stock repurchased during period | $ 21,244,000 | $ 35,083,000 | $ 15,521,000 | ||
| X | ||||||||||
- Definition Stock Repurchase Program, Extension of Period in Force No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of stock repurchase plan authorized. No definition available.
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- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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