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Share-Based Payment Arrangements (Tables) | 3 Months Ended
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Mar. 31, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Option Activity |
|  |  |  |  |  |  |  |  |  | Weighted |  |  |  |  |
|  |  |  |  |  | Weighted |  |  | Average |  |  |  |  |
|  |  |  |  |  | Average |  |  | Remaining |  |  | Aggregate |
|  | Number of |  |  | Exercise |  |  | Contractual |  |  | Intrinsic |
Options |  | Shares |  |  | Price |  |  | Term (Years) |  |  | Value ($000) |
Outstanding at January 1, 2019 |  |  | 46,865 |  |  | $ | 31.88 |  |  |  | 2.6 |  |  | $ | 164 |
Exercised/Released |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Cancelled/Forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Expired |  |  | — |  |  |  | — |  |  |  |  |  |  |  | — |
Outstanding at March 31, 2019 |  |  | 46,865 |  |  | $ | 31.88 |  |  |  | 2.3 |  |  | $ | 399 |
Exercisable at March 31, 2019 |  |  | 46,865 |  |  | $ | 31.88 |  |  |  | 2.3 |  |  | $ | 399 |
Summary of Nonvested Restricted and Performance Shares |
|  |  |  |  |  | Weighted |
|  |  |  |  |  | Average |
|  | Number of |  |  | Grant Date |
|  | Shares |  |  | Fair Value |
Nonvested at January 1, 2019 |  |  | 1,494,041 |  |  | $ | 39.89 |
Granted |  |  | 72,081 |  |  |  | 34.20 |
Vested |  |  | (8,028 | ) |  |  | 47.17 |
Forfeited |  |  | (20,499 | ) |  |  | 38.92 |
Nonvested at March 31, 2019 |  |  | 1,537,595 |  |  | $ | 39.60 |

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- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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