Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

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,
	2015		2014		2015		2014
Option plan	$	6,595	$	6,375	$	13,180	$	11,953
Other share-based awards	9,721		6,688		16,478		11,099
Total share-based compensation before tax	16,316		13,063		29,658		23,052
Tax benefit	6,085		4,885		11,062		8,614
Total share-based compensation expense included in net income	$	10,231	$	8,178	$	18,596	$	14,438