XML 56 R43.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Stock-based Compensation Plan (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Activity for restricted stock awards | The following table summarizes the restricted stock award activity for the year ended December 31, 2018:
| Restricted Stock |  | Weighted- Average Grant Date Fair Value
Non-vested at December 31, 2017 | 183,178 |  |  | $ | 29.84 |
Granted | 114,366 |  |  | 39.92 |
Vested | (111,273 | ) |  | 29.82 |
Forfeited | (4,288 | ) |  | 37.64 |
Non-vested at December 31, 2018 | 181,983 |  |  | 36.03 |

X
- References No definition available. + Details
Name: | us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
Name: | us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration