Repurchases of Common Stock (Tables)

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Schedule of common stock repurchases

The following is a summary of our open market common stock repurchases, reported on a trade date basis, and shares acquired through employee surrender:

(in thousands, except per share amounts)	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2019		2018		2019		2018
Shares repurchased in the open market	86		517		353		982
Shares acquired through employee surrender for statutory tax withholding	1		1		37		49
Total shares repurchased	87		518		390		1,031
Cost of shares repurchased in the open market	$	20,285	$	105,774	$	74,147	$	191,962
Cost of shares for employee surrenders	169		165		7,572		8,720
Total cost of shares	$	20,454	$	105,939	$	81,719	$	200,682
Average cost per share - open market repurchases	$	235.94	$	204.69	$	209.81	$	195.47
Average cost per share - employee surrenders	$	249.77	$	215.36	$	207.16	$	179.41
Average cost per share - total	$	236.04	$	204.71	$	209.56	$	194.71