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Supplemental Cash Flow Information
 12 Months Ended
Dec. 31, 2014
Supplemental Cash Flow Elements [Abstract]  
Supplemental Cash Flow Information
Supplemental Cash Flow Information
Supplemental cash flow information is as follows for the year ended December 31 (in thousands):
 
2014
 
2013
 
2012
Cash paid during the period for:
 
 
 
 
 
Income taxes, net
$
52,565

 
$
14,789

 
$
14,456

Interest, net
$
1,048

 
$
800

 
$
554

Non-Cash Transaction Information:
 
 
 
 
 
Tax benefit from disqualifying dispositions of stock options and restricted stock
$
128

 
$
15

 
$
36

Shares tendered in payment of exercise price of stock options and SARs
$
84

 
$
—

 
$
161

Employee stock purchase plan
$
699

 
$
613

 
$
647

Equipment acquired under capital leases
$
313

 
$
1,929

 
$
672

Unsettled repurchases of common stock
$
1,425

 
$
—

 
$
2,498

Contingent consideration for acquisition
$
477

 
$
—

 
$
—