Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Tables)

v3.19.2
Stock-Based Compensation (Tables)
 6 Months Ended
Jun. 30, 2019
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Share-based Compensation Arrangements by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]
Stock-based compensation expense consisted of the following:
 
 
Three Months Ended June 30,
 
Six Months Ended June 30,
(in thousands)
 
2019
 
2018
 
2019
 
2018
Stock options
 
$
1,602

 
$
1,222

 
$
3,091

 
$
2,294

Restricted stock units
 
2,964

 
2,264

 
5,690

 
4,305

Total
 
$
4,566

 
$
3,486

 
$
8,781

 
$
6,599


Stock Options
During the six months ended June 30, 2019, the Company granted a total of 388,517 stock options at a weighted average grant date fair value of $22.58. At June 30, 2019, unrecognized costs related to outstanding stock options totaled $13.1 million, before any related tax benefit. The unrecognized costs related to stock options are amortized over the related vesting period using the straight-line attribution method. Unrecognized costs related to stock options at June 30, 2019 are expected to be recognized over a weighted average period of 2.63 years.
Restricted Stock Units
During the six months ended June 30, 2019, the Company granted 167,736 restricted stock units at an estimated average grant date fair value of $95.47. At June 30, 2019, unrecognized costs related to outstanding restricted stock units totaled $24.7 million, before any related tax benefit. The unrecognized costs related to restricted stock units are being amortized over the related vesting period using the straight-line attribution method. These unrecognized costs at June 30, 2019 are expected to be recognized over a weighted average period of 2.54 years.