Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share - Summary of Basic and Diluted Weighted-Average Shares Outstanding (Details)

v3.10.0.1
Earnings Per Share - Summary of Basic and Diluted Weighted-Average Shares Outstanding (Details) - shares
shares in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jul. 01, 2017
Jun. 30, 2018
Jul. 01, 2017
Earnings Per Share [Abstract]        
Weighted Average Shares - Basic (in shares) 28,098 28,911 28,085 29,007
Net Effect of Dilutive Stock Options (in shares) 704 1,178 670 1,128
Weighted Average Shares - Diluted (in shares) 28,802 30,089 28,755 30,135
Out-of-the-money stock options     139