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Revolving Credit Facilities and Term Loans - Additional Information (Detail) (USD $) | 6 Months Ended
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Jun. 30, 2013
Unsecured revolving credit facility arranged by JP Morgan Securities, LLC and Wells Fargo Securities, LLC [Member] |
Debt Instrument [Line Items] |
Unsecured revolving credit facility borrowing capacity | $ 750,000,000
Accordion feature | 1,250,000,000
Term loan extension maturity period | 1 year
Extended Maturity Date | Apr. 30, 2018
Line of credit facility competitive bid option on periodic interest rates | Up to 50% of the facility
Facility fee | 0.30%
Carrying Value | 29,700,000
Unsecured revolving credit facility with PNC Bank National Association [Member] |
Debt Instrument [Line Items] |
Carrying Value | 5,000,000
Unsecured revolving credit facility | 65,000,000
Revolving Credit Facilities [Member] |
Debt Instrument [Line Items] |
Specified spread line of credit facility LIBOR rate | 1.40%
Specified spread line of credit facility prime rate | 0.40%
Covenant compliance | The Company was in compliance with these covenants at June 30, 2013.
Secured Term Loan with Key Bank National Association [Member] |
Debt Instrument [Line Items] |
Term loan extension maturity period | 1 year
Extended Maturity Date | Apr. 30, 2018
Specified spread line of credit facility LIBOR rate | 1.55%
Covenant compliance | The Company was in compliance with these covenants at June 30, 2013.
Euro-denominated borrowings [Member] |
Debt Instrument [Line Items] |
Carrying Value | 4,800,000
Canadian borrowings [Member] |
Debt Instrument [Line Items] |
Carrying Value | 24,900,000
US Dollar-Denominated Borrowings [Member] |
Debt Instrument [Line Items] |
Carrying Value | $ 0

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- Definition The increased amount of the facility the Company may expand to provided that new or existing lenders agree to the existing terms of the facility and increase their commitment level. + References No definition available. + Details
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Balance Type: | credit
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- Definition Extended Additional Maturity Period + References No definition available. + Details
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- Definition Extended Maturity Date + References No definition available. + Details
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- Definition Line of credit facility competitive bid option on periodic interest rates. + References No definition available. + Details
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- Definition The spread for prime rate borrowings based on the Company's current debt rating. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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Balance Type: | credit
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- Definition The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used. + References No definition available. + Details
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- Definition Identification of whether the entity has been in compliance with any credit facility debt covenants during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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