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Credit Agreement - Schedule of U.S. Credit Agreement (Parenthetical) (Detail) - Credit Agreement [Member] - USD ($) | Dec. 31, 2015 | Dec. 31, 2014
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Line Of Credit Facility [Line Items] |  |  |
Outstanding letters of credit | [1],[2] | $ 10,446,000 | $ 11,563,000
Letter Of Credit | BMO Harris Bank N.A. (“BMO Harris”) [Member] |  |  |
Line Of Credit Facility [Line Items] |  |  |
Letter of credit collateralized of restricted cash |  | 10,400,000 | 11,600,000
Outstanding letters of credit |  | 1,400,000 | 1,300,000
Letters of credit sub limited |  | $ 60,000,000 | $ 95,000,000
[1] | As of December 31, 2015 and 2014, outstanding letters of credit not related to the Credit Agreement totaled $1.4 million and $1.3 million, respectively, which amount is fully collateralized with restricted cash, which is in addition to the $10.4 million and $11.6 million, respectively, referenced in the preceding note.
[2] | Represents letters of credit which are fully collateralized with $10.4 million and $11.6 million of restricted cash as of December 31, 2015 and 2014, respectively.

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- Definition Restricted cash and investments for securitization for letters of credit. + References No definition available. + Details
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- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + 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 + Details
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