Stock Based Compensation (Details)	3 Months Ended
	Mar. 31, 2018 plan $ / shares shares	Sep. 28, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of plans | plan	3
Stock dividend, percent		3.00%
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Fair Value, in dollars per share	$ 5.76
Dividend Yield	2.98%
Expected Volatility	21.55%
Risk Free Interest Rate	2.68%
Expected Lives, in years	6 years 11 months 23 days
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award expiration period (in years)	10 years
Award vesting period (in years)	4 years
Roll-Forward of Shares Outstanding:
Outstanding, Beginning of Period, in shares | shares	346,155
Granted, in shares | shares	55,188
Exercised, in shares | shares	(27,662)
Forfeited, in shares | shares	0
Outstanding, End of Period, in shares | shares	373,681
Exercisable at Period End, in shares | shares	247,333
Vested and Expected to Vest, in shares | shares	126,348
Roll-Forward of Shares Outstanding - Weighted Average Exercise Price:
Outstanding at Beginning of Period, in dollars per share	$ 24.12
Granted, in dollars per share	30.85
Exercised, in dollars per share	22.03
Forfeited, in dollars per share	0.00
Outstanding, End of Period, in dollars per share	25.27
Exercisable at Period End, in dollars per share	22.57
Vested and Expected to Vest, in dollars per share	$ 30.54
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)	3 years