|
Provision for Credit Losses (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | 12 Months Ended |
|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2012
|
Dec. 31, 2011
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Beginning Balance | $ 22 | $ 8 | |
| (Reversal of provision) provision | (18) | (22) | 14 |
| Ending Balance | 22 | ||
|
Allowance for Doubtful Accounts | Operating leases
|
|||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||
| Beginning Balance | 22 | 8 | |
| (Reversal of provision) provision | (22) | 14 | |
| Ending Balance | $ 22 |