| Income Taxes - Additional Information (Detail) (Minimum) | 3 Months Ended | 
|---|---|
| Jun. 30, 2014 | |
| Minimum | |
| Income Taxes [Line Items] | |
| Percentage of tax benefit likely to being realized upon settlement | 50.00% | 
| X | ||||||||||
| 
- Details 
 | 
| X | ||||||||||
| 
- Definition Percentage of Tax Benefit Likely To Be Realized Upon Settlement No definition available. 
 |