Stockholder's Equity (Tables)

9 Months Ended

Sep. 30, 2018

Equity [Abstract]

Treasury Stock Activity

The following represents the activity relating to the treasury stock held by the Company during the nine months endedSeptember 30, 2018:

	Treasury stock shares	Cost (dollars in thousands)		Average cost per share
Balance outstanding at December 31, 2017	12,133,276	$	186,846	$	15.40
Shares purchased for minimum tax withholding under the Equity Plans or other similar transactions	578,673	8,544		14.76
Shares of stock received in respect of indemnification claims	220,475	3,171		14.38
Purchase of treasury stock	1,160,308	16,762		14.45
Balance outstanding at September 30, 2018	14,092,732	$	215,323	$	15.28