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Interest Rate Hedging - Additional Information (Detail) - USD ($) $ in Millions		12 Months Ended
	Dec. 16, 2014	Dec. 31, 2015	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Amount of interest rate swap	$ 150.0
Description of term of interest rate swap		Effective December 16, 2014, we entered into a $150 million swap that went into effect on December 29, 2015 (one year delayed start), at which time our rate was locked at 6.966% until December 31, 2018.
Locked interest rate	6.966%
Derivative maturity date	Dec. 31, 2018
Derivative inception date	Dec. 29, 2015
Derivative in Net liability position		$ 3.0	$ 0.4

X

- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

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- Definition

Description of the relevant terms of the derivative. Includes the type of instrument, risk being hedged, notional amount, counterparty, inception date, maturity date, relevant interest rates, strike price, cap price, and floor price.

+ References

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- Definition

Fixed interest rate related to the interest rate derivative.

+ References

No definition available.

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- Definition

Date the entity entered into the derivative contract, in CCYY-MM-DD format.

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- Definition

Date the derivative contract matures, in CCYY-MM-DD format.

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- Definition

The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4H
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624258-113959

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