Repurchases of Common Stock (Tables)

9 Months Ended

Sep. 30, 2015

Class of Stock Disclosures [Abstract]

Authorized Stock Repurchase Balance

The following table presents a summary of our authorized stock repurchase balance:

Dollars in thousands	Board Authorization
Authorized repurchase - as of January 1, 2015	$	163,655
Additional board authorization	250,000
Proceeds from the exercise of stock options	2,552
Repurchase of common stock from open market	(123,489		)
Authorized repurchase - as of September 30, 2015	$	292,718