Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Statement of Stockholders' Equity [Abstract]

Common stock and additional paid-in capital activity

The following table summarizes the common stock and additional paid-in capital activity during the three months ended March 31, 2018 (in thousands):

Common stock and additional paid-in capital, December 31, 2017	$	91,162
Common stock issued pursuant to stock-based compensation plans, net	3,232
Stock-based compensation	5,926
Repurchase of common stock	(94,956		)
Common stock and additional paid-in capital, March 31, 2018	$	5,364