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Derivative and Hedging Activities - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2017 USD ($) Instruments
Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Fair value of derivatives | $ 100,000
Interest Expense [Member] | Designated as Hedging Instrument [Member] |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Reclassification from accumulated other comprehensive income to interest expense | 600,000
Interest Rate Swap [Member] | Cash Flow Hedging [Member] |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Notional amount of derivative instruments | $ 100,000,000
Derivatives, number of instruments held | Instruments | 2
Notional amount amortized | $ 95,300,000
Notional amount maturity date | May 31, 2022

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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