|
Income Tax Expense, Net - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2013
|
Jun. 30, 2012
|
Jun. 30, 2013
|
Jun. 30, 2012
|
|
| Income Taxes [Line Items] | ||||
| Income tax expense | $ 1,047 | $ 71 | $ 3,244 | $ 146 |
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Expense due to change in U.S. tax status
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| Income Taxes [Line Items] | ||||
| Income tax expense | 4,200 | |||
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Debt prepayments
|
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| Income Taxes [Line Items] | ||||
| Income tax expense | (5,000) | |||
|
U.S. operations
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| Income Taxes [Line Items] | ||||
| Income tax expense | $ 4,000 | |||