Shareholders' Equity (Tables)

6 Months Ended

Jun. 28, 2015

Stockholders' Equity

Summary of Share Count and Par Value Data Related to Shareholders' Equity

	As of
	June 28,		December 31,
	2015		2014
Preferred Stock
Par value per share		No par value		No par value
Shares authorized		25,000,000		25,000,000
Shares outstanding		—		—
Common Stock
Par value per share		No par value		No par value
Shares authorized		75,000,000		75,000,000
Shares issued		56,240,253		56,101,700
Shares outstanding		32,903,731		33,392,060
Treasury stock
Shares held		23,336,522		22,709,640

Summary of Common Shares Outstanding

	Six Months Ended
	June 28, 2015		June 29, 2014
Balance at the beginning of the year		33,392,060		33,558,864
Repurchases		(626,882)		(211,270)
Shares issued upon exercise of stock options		5,200		101,350
Restricted share issuances		133,353		169,937
Balance at the end of the period		32,903,731		33,618,881