Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2016

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

Schedule of share-based compensation expenses

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

	Three months ended June 30,				Six months ended June 30,
	2016		2015		2016		2015
Option plan	$	6,158	$	6,595	$	11,562	$	13,180
Other share-based awards	9,362		9,721		18,819		16,478
Total share-based compensation before tax	15,520		16,316		30,381		29,658
Tax benefit	5,789		6,085		11,332		11,062
Total share-based compensation expense included in net income	$	9,731	$	10,231	$	19,049	$	18,596