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Stockholders' Equity - Additional Information (Detail)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 08, 2016
shares
Jul. 07, 2014
Employee
$ / shares
shares
Jul. 01, 2004
shares
Jun. 30, 2004
shares
Dec. 31, 2016
USD ($)
Vote
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2014
USD ($)
$ / shares
shares
Oct. 31, 2014
shares
May 17, 2011
shares
Aug. 31, 2008
shares
Jul. 31, 2002
shares
Class of Stock [Line Items]                      
Number of vote per share entitled by holders of common stock | Vote         1            
Preferred Stock, shares authorized         5,000,000 5,000,000          
Preferred Stock, par value | $ / shares         $ 0.001 $ 0.001          
Common stock shares, authorized                   1,000,000  
Common stock, additional number of shares authorized to repurchase         4,000,000            
Common stock shares, available for repurchase         311,056            
Purchase of Treasury Stock, shares         180,013 508,931 1,227,148        
Purchase of Treasury Stock, per share value | $ / shares         $ 18.98 $ 19.80 $ 15.20        
Purchase of Treasury Stock | $         $ 3,417 $ 10,078 $ 18,657        
Weighted average fair value of options and stock appreciation rights granted | $ / shares           $ 7.8 $ 6.1        
Weighted average fair value of options granted | $ / shares         $ 12.9            
Total intrinsic value of options and stock appreciation rights exercised | $         $ 12,282 $ 8,960 $ 1,372        
Option granted         104,000            
2011 Stock Incentive Plan                      
Class of Stock [Line Items]                      
Options and stock appreciation rights granted under stock incentive plans vesting rate, year one         25.00%            
Remaining shares vesting period         36 months            
Maximum                      
Class of Stock [Line Items]                      
Award vesting period         4 years            
Stock Appreciation Rights (SARs)                      
Class of Stock [Line Items]                      
Aggregate number of stock issued by the company         0            
Stock Appreciation Rights (SARs) | Maximum                      
Class of Stock [Line Items]                      
Options granted percentage           400.00% 400.00%        
Stock Appreciation Rights (SARs) | RivieraWaves                      
Class of Stock [Line Items]                      
Award vesting period   4 years                  
Remaining shares vesting period   36 months                  
Aggregate number of stock issued by the company   113,000                  
Number of employees joined the company | Employee   27                  
Fair market value on grant date | $ / shares   $ 15.17                  
Award vesting description         All of the SARs were priced at $15.17, the fair market value on the grant date, and will vest over four years, with 25% of the SARs vesting after one year and the remaining vest in equal portions over the following 36 months, such that all SARs will vest after four years, subject to the employee's continuous service through each vesting date.            
Description of award term         The SARs have a ceiling limit for maximum income capped at 400%, expire seven years from the grant date and are subject to the terms and condition of the individual SAR agreements.            
Award expiration period   7 years                  
Stock Appreciation Rights (SARs) | RivieraWaves | SARs Vesting After One Year                      
Class of Stock [Line Items]                      
Vesting percentage   25.00%                  
Restricted Stock Units (RSUs)                      
Class of Stock [Line Items]                      
Award vesting period         3 years            
Aggregate number of stock issued by the company         394,417            
Stock incentive plans vesting percentage         33.33%            
Fair market value on grant date | $ / shares         $ 22.05            
Award vesting description         RSUs granted to employees generally vest in three equal annual installments starting on the first anniversary of the grant date. RSUs granted to non-employee directors generally vest in full on the first anniversary of the grant date.            
Stock Options, Stock Appreciation Rights and Restricted Stock Units                      
Class of Stock [Line Items]                      
Number of options available for grant under stock plan         756,244            
2011 Stock Incentive Plan                      
Class of Stock [Line Items]                      
Number of common shares authorized for issuance                 1,750,000    
Share incentive plan expiration         2021-02            
2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Number of common shares authorized for issuance         1,350,000            
2003 Director Stock Option Plan | Maximum                      
Class of Stock [Line Items]                      
Award expiration period         10 years            
2003 Director Stock Option Plan | Minimum                      
Class of Stock [Line Items]                      
Requisite period of service to get option granted     6 months                
2002 Employee Stock Purchase Plan ESPP                      
Class of Stock [Line Items]                      
Number of options available for grant under stock plan         183,003           2,500,000
Minimum working hours for eligibility of employee stock purchase plan         20 hours            
Minimum working days for employee stock purchase plan         5 months            
Rule 10b-18                      
Class of Stock [Line Items]                      
Common stock, additional number of shares authorized to repurchase               1,000,000      
Non Employee Director                      
Class of Stock [Line Items]                      
Options granted under stock incentive plan vesting rate, each anniversary         25.00%            
Non Employee Director | Restricted Stock Units (RSUs)                      
Class of Stock [Line Items]                      
Award vesting period         1 year            
Non Employee Director | 2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Option granted       38,000              
Board of Directors Chairman | 2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Option granted     15,000                
Board of Directors | 2011 Stock Incentive Plan                      
Class of Stock [Line Items]                      
Aggregate number of stock issued by the company         23,517            
Board of Directors | 2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Option granted     13,000   66,000            
Committee Chairperson | 2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Option granted     13,000                
Board of Directors Maria Marced | 2003 Director Stock Option Plan                      
Class of Stock [Line Items]                      
Option granted 38,000