Quarterly report pursuant to Section 13 or 15(d)

Change in Rate Based on Leverage Ratio (Detail)

v2.4.0.8
Change in Rate Based on Leverage Ratio (Detail)
Mar. 31, 2014
Mar. 31, 2013
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 9.625% 9.625%
Base Rate | Less than 3.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 1.25%  
Base Rate | Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 1.50%  
Base Rate | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 1.75%  
Base Rate | Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.00%  
Base Rate | Greater than or equal to 6.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.50%  
LIBOR Loans | Less than 3.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.25%  
LIBOR Loans | Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.50%  
LIBOR Loans | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.75%  
LIBOR Loans | Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 3.00%  
LIBOR Loans | Greater than or equal to 6.00 to 1.00
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 3.50%  
Less than 3.25 to 1.00 | Base Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.75%  
Less than 3.25 to 1.00 | Eurodollar Rate Loans
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.25%  
Less than 3.25 to 1.00 | Applicable Fee Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.40%  
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00 | Base Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.75%  
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00 | Eurodollar Rate Loans
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.50%  
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00 | Applicable Fee Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.50%  
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00 | Base Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 1.25%  
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00 | Eurodollar Rate Loans
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 3.00%  
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00 | Applicable Fee Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.60%  
Greater than or equal to 6.00 to 1.00 | Base Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 2.25%  
Greater than or equal to 6.00 to 1.00 | Eurodollar Rate Loans
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 3.50%  
Greater than or equal to 6.00 to 1.00 | Applicable Fee Rate
   
Debt Instrument [Line Items]    
Change in rate based on leverage ratio, contractual interest rate 0.75%