Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 28, 2014	Jun. 29, 2014	Mar. 30, 2014	Dec. 31, 2013	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jan. 31, 2015
Capital Stock [Abstract]
Common stock, shares authorized (in shares)	100,000,000				100,000,000				100,000,000	100,000,000
Common stock, par value (in dollars per share)	$ 0.10				$ 0.10				$ 0.10	$ 0.10
Common stock, shares outstanding (in shares)	34,649,755				34,350,186				34,649,755	34,350,186
Preferred stock, authorized (in shares)	1,000,000				1,000,000				1,000,000	1,000,000
Preferred stock, issued (in shares)	0				0				0	0
Preferred stock, outstanding (in shares)	0				0				0	0
Stock split										Board of Directors authorized a two-for-one stock split of the of the Company's outstanding common stock
Conversion ratio (in hundredths)										1
Increase in stock outstanding related to stock split (in shares)									17,600,000
Cash Dividends [Abstract]
Cash dividends paid									$ 6.9
Cash dividends paid (in dollars per share)	$ 0.05	$ 0.05	$ 0.05	$ 0.05	$ 0.050	$ 0.050	$ 0.050	$ 0.050	$ 0.20
Stock Award and Incentive Plan [Abstract]
Term of stock options granted under Plan									10 years
Vesting period, generally, for stock options granted under the plan									3 years
Shares available for grant [Roll Forward]
Balance, beginning of year (in shares)				1,190,964				1,491,974	1,190,964	1,491,974	1,677,738
Granted (in shares)									(279,184)	(351,995)	(345,696)
Exercised/vested (in shares)									0	0	0
Canceled (in shares)									84,806	50,985	159,932
Balance, end of year (in shares)	996,586				1,190,964				996,586	1,190,964	1,491,974
Stock Options [Member]
Stock options [Roll Forward]
Balance, beginning of year (in shares)				1,131,415				1,395,520	1,131,415	1,395,520	1,573,974
Granted (in shares)									173,068	239,770	222,250
Exercised (in shares)									(323,636)	(501,222)	(330,158)
Canceled (in shares)									(29,768)	(2,653)	(70,546)
Balance, end of year (in shares)	951,079				1,131,415				951,079	1,131,415	1,395,520
Weighted average exercise price per share, Stock options [Abstract]
Balance, beginning of year (in dollars per share)				$ 32.42				$ 28.31	$ 32.42	$ 28.31	27.10
Granted (in dollars per share)									$ 58.25	$ 41.42	32.04
Exercised (in dollars per share)									$ 30.57	$ 25.26	25.15
Canceled (in dollars per share)									$ 41.88	$ 37.24	27.76
Balance, end of year (in dollars per share)	$ 37.46				$ 32.42				$ 37.46	$ 32.42	28.31
Restricted Stock [Roll Forward]
Exercised/vested (in shares)									323,636	501,222	330,158
Canceled (in shares)									29,768	2,653	70,546
Restricted Stock [Member]
Stock options [Roll Forward]
Exercised (in shares)									61,621	61,981	102,424
Canceled (in shares)									55,038	48,332	89,386
Restricted Stock [Roll Forward]
Balance, beginning of year (in shares)				185,572				183,660	185,572	183,660	252,024
Granted (in shares)									106,116	112,225	123,446
Exercised/vested (in shares)									(61,621)	(61,981)	(102,424)
Canceled (in shares)									(55,038)	(48,332)	(89,386)
Balance, end of year (in shares)	175,029				185,572				175,029	185,572	183,660
Weighted average grant date fair value per share, Restricted stock [Abstract]
Balance, beginning of year (in dollars per share)				$ 37.65				$ 31.25	$ 37.65	$ 31.25	27.21
Granted (in dollars per share)									$ 58.94	$ 41.44	32.04
Vested (in dollars per share)									$ 36.51	$ 28.09	25.90
Canceled (in dollars per share)									$ 38.73	$ 31.59	27.08
Balance, end of year (in dollars per share)	$ 50.56				$ 37.65				$ 50.56	$ 37.65	31.25
Subsequent Event [Member]
Cash Dividends [Abstract]
Cash dividend declared												$ 1.7
Cash dividend declared (in dollars per share)												$ 0.05