Stock-Based Compensation - Additional Information (Detail) - USD ($)		12 Months Ended
	Apr. 25, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under 2013 Plan		1,647,878	1,984,035
Stock-based compensation expense recognized		$ 3,200,000	$ 3,700,000	$ 3,200,000
Stock-based compensation expense after tax		$ 2,200,000	$ 2,600,000	$ 2,500,000
Stock options granted, vest in percentage per annum increments		25.00%
Stock option exercisable period description		Start to become exercisable one year from the grant date and expire between five and seven years from the grant date
Non-statutory stock options, granted	750,000
Non-statutory stock options, vesting percentage after second year	40.00%
Non-statutory stock options, vesting percentage in each of following three years	20.00%
Non-statutory stock options, exercise price over December 2012 market value, percent	20.00%
Non eligibility period of receiving grants under any of other stock based award programs	5 years
Weighted-average risk-free rate of return		1.54%	0.97%	0.50%
Expected option life		4 years 10 months 24 days	4 years 10 months 24 days	4 years 10 months 24 days
Expected stock price volatility rate		25.00%	29.00%	30.70%
Assumed dividend yield		0.76%	0.67%	1.01%
Weighted-average fair value of awards granted		$ 5.73	$ 5.78	$ 4.65
Aggregate intrinsic value of options exercised		$ 3,000,000	$ 2,400,000	$ 2,700,000
Total unrecognized compensation cost of nonvested stock options		$ 3,200,000
Expected weighted-average period		2 years 2 months 12 days
Shares vesting period		2 years
Compensation expense		$ 256,000
Stock-based compensation expense		$ 2,957,000	$ 3,738,000	$ 2,938,000
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		5 years
Return on investment of cost of restricted stock		50.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		7 years
Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting period		5 years
Restricted stock granted		66,750
Share-Based Compensation Award, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted, vest in percentage per annum increments			25.00%
Share-Based Compensation Award, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted, vest in percentage per annum increments				25.00%
Stock Incentive 2013 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance under 2013 Plan		2,096,535
Shares available for future grants under 2013 Plan		946,146
Stock Incentive 2013 Plan [Member] | Executive Officers [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive stock options issued		450,000
Non-Plan Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average risk-free rate of return		0.76%
Expected option life		5 years
Expected stock price volatility rate		40.50%
Assumed dividend yield		1.01%
Restricted Stock and Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock awards vesting period		4 years
Restricted stock granted		37,986
Weighted average fair value, granted		$ 26.13	$ 23.72	$ 15.83
Total compensation cost to be recognized		$ 1,900,000
Weighted average remaining contractual term		2 years 6 months
Total fair value, vested		$ 1,300,000	$ 1,200,000	$ 1,200,000
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance award vesting period		4 years
Aggregate shares of restricted stock awarded		233,400
Percentage of annual return on assets				1.00%
Restricted stock units and awards issued			108,456
Vesting description		The RSUs vest in 25% increments over four years
Stock-based compensation expense		$ 380,000