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Stock-Based Compensation (Tables) | 9 Months Ended
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Sep. 30, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Summary of Compensation Expense and Related Tax Benefits | The following table presents compensation expense and the related tax benefits for equity awards recognized in the Consolidated Statements of Income:
| Three months ended September 30 |  | Nine months ended September 30
| 2019 |  | 2018 |  | 2019 |  | 2018
| (in thousands)
Compensation expense | $ | 2,110 |  |  | $ | 1,823 |  |  | $ | 5,458 |  |  | $ | 6,007 |
Tax benefit | (451 | ) |  | (492 | ) |  | (1,194 | ) |  | (2,028 | )
Stock-based compensation expense, net of tax benefit | $ | 1,659 |  |  | $ | 1,331 |  |  | $ | 4,264 |  |  | $ | 3,979 |

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