Equity Compensation Plans - Additional Information (Detail) - USD ($)		3 Months Ended		6 Months Ended
	Apr. 27, 2012	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense		$ 900,000	$ 800,000	$ 2,100,000	$ 1,500,000
Equity compensation costs capitalized as part of inventory				$ 0	$ 0
Stock options granted (shares)		0	0	18,300	0
Stock options exercised (shares)		9,313	42,464	27,639	102,046
Cash received from exercise of stock option		$ 100,000	$ 500,000	$ 400,000	$ 1,100,000
Number of options exercised, intrinsic value		300,000	700,000	600,000	1,900,000
Intrinsic value of stock options exercised, tax benefit			$ 300,000	$ 100,000	$ 600,000
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		2,300,000		$ 2,300,000
Weighted average expected amortization period				2 years 10 months 29 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		$ 3,600,000		$ 3,600,000
Weighted average expected amortization period				2 years
Unvested restricted stock awards (shares)		264,373		264,373
Time Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		0	0	7,930	0
Restricted shares vested (shares)		0		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)			0		0
Restricted shares vested (shares)			0		0
Stock Option Plan 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share options and restricted shares authorized (shares)	1,750,000
Additional shares authorized under the plan (shares)	1,200,000
Stock Option Plan 2012 | Performance Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares vested (shares)		0		65,087
Earnings Target in 2018 | Performance Based Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares granted (shares)		0
Restricted shares vested (shares)				7,380