XML 35 R23.htm IDEA: XBRL DOCUMENT v3.19.2
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2019
Stock-Based Compensation [Abstract]  
Stock-Based Compensation Expense

Three months ended

Six months ended

June 30,

June 30,

2019

2018

2019

2018

Stock-based compensation expense

$

21,322

$

11,660

$

40,664

$

24,036

Stock-based compensation expense, net of tax

$

15,689

$

8,575

$

30,091

$

17,676

Total capitalized stock-based compensation included in net property, plant and equipment on the condensed consolidated balance sheet

$

155

$

112

$

343

$

391

Excess tax benefit (deficit) on stock-based compensation recognized in provision for income taxes

$

5,264

$

(431)

$

10,698

$

(5,973)