Shareholders' Equity - Narrative (Details) |
12 Months Ended | |||
|---|---|---|---|---|
|
Feb. 24, 2016
USD ($)
shares
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Dec. 31, 2018
USD ($)
shares
|
Dec. 31, 2017
shares
|
Dec. 31, 2016
shares
|
|
| Stockholders Equity | ||||
| Amount authorized for stock repurchase program | $ | $ 50,000,000 | |||
| Common stock reserved (in shares) | 12,900,000 | |||
| Income tax effect recorded for currency translation adjustments | $ | $ 0 | |||
| Convertible Class B Stock | ||||
| Stockholders Equity | ||||
| Class B stock voting rights per share | 10 | |||
| Conversion ratio for Class B stock to common stock | 1.00 | |||
| Treasury Stock | ||||
| Stockholders Equity | ||||
| Number of shares repurchased (in shares) | 1,675,000 | 0 | 1,152,000 | 523,000 |
| Treasury stock repurchased (in shares) | 0 | |||
| X | ||||||||||
- Definition Common Stock, Conversion Ratio No definition available.
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| X | ||||||||||
- Definition Common Stock, Votes Per Share No definition available.
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| X | ||||||||||
- Definition Stockholders Equity [Line Items] No definition available.
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| X | ||||||||||
- Definition Treasury Stock, Shares, Repurchased No definition available.
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| X | ||||||||||
- Definition Aggregate number of common shares reserved for future issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of tax expense (benefit), after reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of stock repurchase plan authorized. No definition available.
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| X | ||||||||||
- Definition Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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- Details
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