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Debt Obligations (Credit Facility - prior to 4/1/14 information - Additional Information (Detail) - Prior to 4/1/14 [Member] | 12 Months Ended
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Dec. 31, 2016
Line of Credit Facility [Line Items] |
Commitment fee | 0.20%
Excess of Eurocurrency Rate Applicable to Domestic Borrowings Only [Member] |
Line of Credit Facility [Line Items] |
Debt Instrument Basis Spread On Variable Rate | 1.25%
Excess of Base Rate Domestic Borrowings Only [Member] |
Line of Credit Facility [Line Items] |
Debt Instrument Basis Spread On Variable Rate | 0.25%
Excess of Euro Currency Rate of Credit Agreement for Foreign Borrowings [Member] |
Line of Credit Facility [Line Items] |
Debt Instrument Basis Spread On Variable Rate | 1.25%
Standby Letters of Credit [Member] |
Line of Credit Facility [Line Items] |
Debt Instrument Basis Spread On Variable Rate | 1.25%
Performance Letters of Credit [Member] |
Line of Credit Facility [Line Items] |
Debt Instrument Basis Spread On Variable Rate | 0.75%

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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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Balance Type: | na
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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