Stock Options - Additional Information (Details) - $ / shares			3 Months Ended
	Mar. 24, 2017	Aug. 27, 2015	Mar. 31, 2017	Mar. 31, 2016
Employee Stock Purchase Plan
Granted (in shares)	70,000	38,750	70,000	0
Granted (in dollars per share)	$ 44.21	$ 42.03	$ 44.21	$ 0.00
Exercisable period (in years)		5 years
Expiration period (in years)		10 years
Employee Stock Option
Employee Stock Purchase Plan
Exercisable period (in years)		5 years
Expiration period (in years)		10 years	10 years
Tranche One
Employee Stock Purchase Plan
Granted (in shares)	46,250		46,250
Granted (in dollars per share)	$ 44.21
Exercisable period (in years)	3 years
Expiration period (in years)	10 years
Tranche One | Employee Stock Option
Employee Stock Purchase Plan
Exercisable period (in years)			3 years
Tranche Two
Employee Stock Purchase Plan
Granted (in shares)	23,750		23,750
Granted (in dollars per share)	$ 44.21
Exercisable period (in years)	5 years
Expiration period (in years)	10 years
Tranche Two | Employee Stock Option
Employee Stock Purchase Plan
Exercisable period (in years)			5 years