Equity Compensation Plans - Additional Information (Detail) - USD ($)		3 Months Ended
	Apr. 27, 2012	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 1,100,000	$ 600,000
Stock options granted (shares)		18,300	0
Stock options exercised (shares)		18,326	59,582
Cash received from exercise of stock option		$ 300,000	$ 600,000
Number of options exercised, intrinsic value		300,000	1,200,000
Intrinsic value of stock options exercised, tax benefit		100,000	400,000
Equity compensation costs capitalized as part of inventory		$ 0	$ 0
Employee Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, term		10 years
Award, vesting period		4 years
Total unrecognized compensation cost		$ 2,500,000
Weighted average expected amortization period		3 years 1 month 5 days
Employee Stock Option | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost		$ 4,300,000
Weighted average expected amortization period		2 years 1 month
Unvested restricted stock awards (shares)		266,533
Time Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		7,930	0
Restricted shares vested (shares)		8,129	10,321
Time Based Restricted Stock | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		2 years
Time Based Restricted Stock | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award, vesting period		4 years
Performance Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		7,380	0
Restricted shares vested (shares)		65,087	0
Stock Option Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options and restricted shares authorized	1,750,000
Additional shares authorized under the plan	1,200,000