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Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended |
|---|---|
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Dec. 31, 2013
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| Operating Loss Carryforwards [Line Items] | |
| Additions for tax positions taken in prior periods | $ 306 |
| Reductions for lapses of statute of limitations | (23) |
| Unrecognized tax benefits balance at end of year | $ 283 |