v2.4.0.8

Inventories - Additional Information (Detail) (New Inventory Rotation Methodology) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2013 D | Mar. 31, 2012 D | Dec. 31, 2012 D
New Inventory Rotation Methodology |  |  |
Inventories [Line Items] |  |  |
Inventory rotation days | 53 | 41 | 45

X
- Details
Name: | ck0001046880_InventoriesLineItems
Namespace Prefix: | ck0001046880_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of inventory rotation days. + References No definition available. + Details
Name: | ck0001046880_NumberOfInventoryRotationDays
Namespace Prefix: | ck0001046880_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration