Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2018

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

Schedule of share-based compensation expenses

Total share-based compensation expenses were comprised as follows (in thousands):

	Three months ended March 31,
	2018		2017
Option plan	$	3,057	$	1,422
Other share-based awards	5,889		9,092
Total share-based compensation before tax	8,946		10,514
Tax benefit	2,129		3,905
Total share-based compensation expense included in net income	$	6,817	$	6,609