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Stock Repurchase Program
3 Months Ended
Mar. 31, 2018
Class of Stock Disclosures [Abstract]  
Stock Repurchase Program
Stock Repurchase Program
Under the Company's stock repurchase program, the Company repurchased shares as follows:
 
Three Months Ended
(in thousands, except per share data)
March 31,
2018
 
March 31,
2017
Number of shares repurchased
750

 
1,000

Average price paid per share
$
157.11

 
$
100.35

Total cost
$
117,831

 
$
100,352


In February 2018, the Company's Board of Directors increased the number of shares authorized for repurchase to a total of 5.0 million shares under the stock repurchase program. As of March 31, 2018, 4.8 million shares remained available for repurchase under the program.