Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

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 June 30,				Six months ended June 30,
	2017		2016		2017		2016
Option plan	$	5,649	$	6,158	$	7,071	$	11,562
Other share-based awards	13,018		9,362		22,110		18,819
Total share-based compensation before tax	18,667		15,520		29,181		30,381
Tax benefit	6,933		5,789		10,838		11,332
Total share-based compensation expense included in net income	$	11,734	$	9,731	$	18,343	$	19,049