Annual report pursuant to Section 13 and 15(d)

Change in Rate Based on Leverage Ratio (Parenthetical) (Detail)

v2.4.0.8
Change in Rate Based on Leverage Ratio (Parenthetical) (Detail)
Dec. 31, 2013
Maximum | Less than 3.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 3.00%
Maximum | Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 4.00%
Maximum | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 5.00%
Maximum | Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 6.00%
Minimum | Greater than or equal to 3.00 to 1.00 but less than 4.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 3.00%
Minimum | Greater than or equal to 4.00 to 1.00 but less than 5.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 4.00%
Minimum | Greater than or equal to 5.00 to 1.00 but less than 6.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 5.00%
Minimum | Greater than or equal to 6.00 to 1.00
 
Debt Instrument [Line Items]  
Leverage ratio 6.00%
Less than 3.25 to 1.00 | Maximum
 
Debt Instrument [Line Items]  
Leverage ratio 3.25%
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00 | Maximum
 
Debt Instrument [Line Items]  
Leverage ratio 4.50%
Greater than or equal to 3.25 to 1.00 but less than 4.50 to 1.00 | Minimum
 
Debt Instrument [Line Items]  
Leverage ratio 3.25%
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00 | Maximum
 
Debt Instrument [Line Items]  
Leverage ratio 6.00%
Greater than or equal to 4.50 to 1.00 but less than 6.00 to 1.00 | Minimum
 
Debt Instrument [Line Items]  
Leverage ratio 4.50%
Greater than or equal to 6.00 to 1.00 | Minimum
 
Debt Instrument [Line Items]  
Leverage ratio 6.00%