Stock-Based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock-Based Compensation Expense

Total stock-based compensation expense was as follows:

	Three Months Ended March 31,
	2021		2020
	(In thousands)
Employees	$	7,103	$	6,399
Non-employee directors		321		278
Total stock-based compensation	$	7,424	$	6,677