STOCK AWARD PLANS (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

A summary of our total compensation expense recognized in our condensed consolidated statements of operations and comprehensive income for stock-based compensation is as follows (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	2017		2016		2017		2016
Stock options	$	1,715	$	603	$	5,341	$	5,818
Stock awards	5,427		3,747		17,149		22,768
Company expense on ESPP discount	525		491		2,019		2,040
Total stock-based compensation expense	$	7,667	$	4,841	$	24,509	$	30,626

Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity

The following is a summary of the employee stock purchase plan activity (dollar amounts in thousands):

Three Months Ended September 30, 2017
Shares purchased by employees	Aggregate cost to employees		Expense recognized by the company
45,986	$	2,975	$	525