Summary of Changes in Shareholders' Equity |
A summary of changes in stockholders’ equity is presented below (in thousands): | | | | | | | | | | | | | | | | | | | | | | | Six Months Ended June 30, 2018 | | | (In thousands) | | | Number of Shares | | Common Stock | | Additional Paid-In Capital | | Retained Earnings | | Total | Balance at December 31, 2017 | | 40,331 |
| | $ | 403 |
| | $ | 584,578 |
| | $ | 991,844 |
| | $ | 1,576,825 |
| Adoption of ASU 2014-09 (1) | | — |
| | — |
| | — |
| | (583 | ) | | (583 | ) | Net earnings | | — |
| | — |
| | — |
| | 97,712 |
| | 97,712 |
| Exercise/vesting of stock-based awards | | 318 |
| | 3 |
| | (3 | ) | | — |
| | — |
| Stock-based compensation expense | | — |
| | — |
| | 8,986 |
| | — |
| | 8,986 |
| Balance at June 30, 2018 | | 40,649 |
| | $ | 406 |
| | $ | 593,561 |
| | $ | 1,088,973 |
| | $ | 1,682,940 |
|
| | (1) | Refer to Note 1 for additional information related to the adoption of ASU 2014-09. |
| | | | | | | | | | | | | | | | | | | | | | | Six Months Ended June 30, 2017 | | | (In thousands) | | | Number of Shares | | Common Stock | | Additional Paid-In Capital | | Retained Earnings | | Total | Balance at December 31, 2016 | | 40,031 |
| | $ | 400 |
| | $ | 572,506 |
| | $ | 848,589 |
| | $ | 1,421,495 |
| Net earnings | | — |
| | — |
| | — |
| | 65,152 |
| | 65,152 |
| Exercise/vesting of stock-based awards | | 289 |
| | 3 |
| | (3 | ) | | — |
| | — |
| Stock-based compensation expense | | — |
| | — |
| | 5,792 |
| | — |
| | 5,792 |
| Balance at June 30, 2017 | | 40,320 |
| | $ | 403 |
| | $ | 578,295 |
| | $ | 913,741 |
| | $ | 1,492,439 |
|
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