| Segment Information - Additional Information (Detail) | 3 Months Ended | 
|---|---|
| Sep. 30, 2013
 Segment | |
| Segment Reporting Information [Line Items] | |
| Number of reportable segments | 2 | 
| X | ||||||||||
| 
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. No definition available. 
 | 
| X | ||||||||||
| 
- Details 
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