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Debt - Other Indebtedness (Detail) (USD $)
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12 Months Ended |
0 Months Ended |
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Dec. 31, 2011
CreditFacility
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Dec. 31, 2014
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Dec. 31, 2013
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Jan. 31, 2013
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Dec. 31, 2012
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Jun. 30, 2010
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| Revolving Facility [Member] |
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| Debt Instrument [Line Items] |
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| Uncommitted funds available for borrowing |
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$ 300,000,000 |
$ 240,000,000 |
$ 240,000,000 |
| Remaining credit facility, uncommitted funds available for borrowings |
|
293,300,000 |
292,700,000 |
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| Other Indebtedness [Member] | Revolving Facility [Member] |
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| Debt Instrument [Line Items] |
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| Number of short term credit facilities |
2 |
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| Outstanding borrowings under remaining revolving facility |
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0 |
0 |
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| Other Indebtedness [Member] | Short-term Revolving Facilities Annual Renewal [Member] |
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| Debt Instrument [Line Items] |
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| Uncommitted funds available for borrowing |
28,500,000 |
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| Other Indebtedness [Member] | Short-term Revolving Facilities Non-renewal [Member] |
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| Debt Instrument [Line Items] |
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| Remaining credit facility, uncommitted funds available for borrowings |
13,500,000 |
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| Other Indebtedness [Member] | Remaining Revolving Credit Facility [Member] |
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| Debt Instrument [Line Items] |
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| Remaining credit facility, uncommitted funds available for borrowings |
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15,000,000 |
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| Outstanding borrowings under remaining revolving facility |
|
7,600,000 |
5,100,000 |
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| Weighted average interest rate |
|
0.10% |
0.10% |
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| Remaining revolving facility repayment period |
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12 months |
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| Other Indebtedness [Member] | Senior Secured Credit Facility [Member] |
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| Debt Instrument [Line Items] |
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| Foreign working capital facilities maximum limit |
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75,000,000 |
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| Other Indebtedness [Member] | 2013 Amendment Agreement [Member] | Asia [Member] |
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| Debt Instrument [Line Items] |
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| Foreign working capital facilities maximum limit |
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$ 25,000,000 |
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