CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Mar. 31, 2019 |
Dec. 31, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
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| Statement of Stockholders' Equity [Abstract] | ||||||
| Purchase of treasury stock (in shares) | 240,155 | 143,092 | 186,417 | 35,734 | 260,621 | 75,765 |
| Issuance of treasury stock (in shares) | 2,822 | 102,856 | 223,971 | |||
| Cancellations of treasury stock (in shares) | 41 | 19,433 | 650 | 5,214 | ||
| Dividends, per share (in dollars per share) | $ 0.2 | $ 0.2 | $ 0.20 | $ 0.19 | $ 0.19 | $ 0.19 |
| X | ||||||||||
- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 | ||||||||||
- Definition Number of shares of common and preferred stock retired from treasury during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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