Debt Instrument, Covenant Compliance, Net Leverage Ratio

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- Definition

Debt Instrument, Increase (Decrease) in Basis Spread on Variable Rate

+ References

No definition available.

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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

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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.

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ 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 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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- Definition

Average fixed interest rate related to the group of interest rate derivatives.

+ References

No definition available.

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- Definition

The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

+ References

No definition available.

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- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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-Publisher FASB
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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

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LONG-TERM DEBT - Additional Information (Detail)	3 Months Ended			9 Months Ended		12 Months Ended
LONG-TERM DEBT - Additional Information (Detail)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016	Mar. 31, 2017 USD ($) interest_rate_derviative
Debt Instrument [Line Items]
Loss on debt extinguishment	$ 0		$ 191,000	$ 517,000	$ 736,000
Cash Flow Hedging
Debt Instrument [Line Items]
Derivative asset fair value	58,000			58,000
Derivative liability fair value	$ 321,000			$ 321,000
Cash Flow Hedging \| Interest Rate Derivative
Debt Instrument [Line Items]
Interest rate derivatives entered into \| interest_rate_derviative							3
Notional amount							$ 60,000,000
Weighted average percentage rate paid							1.95%
Cash Flow Hedging \| Interest Rate Derivative - February 2021
Debt Instrument [Line Items]
Notional amount							$ 35,000,000
Cash Flow Hedging \| Interest Rate Derivative - February 2022
Debt Instrument [Line Items]
Notional amount							25,000
Maine Bonds \| Variable Rate Bonds
Debt Instrument [Line Items]
Aggregate principal amount							$ 3,600,000
LIBOR \| Cash Flow Hedging \| Interest Rate Derivative
Debt Instrument [Line Items]
Floor interest rate received							1.00%
Secured Debt \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 2.75% and 3.00%, respectively
Debt Instrument [Line Items]
Aggregate principal amount		$ 350,000,000
Debt instrument variable rate basis (percentage)				2.75%		3.00%
Secured Debt \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Net leverage ratio	3.75			3.75
Secured Debt \| LIBOR \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Debt instrument variable rate basis (percentage)				2.75%
Secured Debt \| LIBOR \| Consolidated net leverage ratio of 3.75x or less \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Debt instrument variable rate basis (percentage)				2.50%
Secured Debt \| LIBOR Floor \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Debt instrument variable rate basis (percentage)				1.00%
Secured Debt \| LIBOR Floor \| Consolidated net leverage ratio of 3.75x or less \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Debt instrument variable rate basis (percentage)				1.00%
Secured Debt \| Base Rate \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Decrease in applicable interest margin (basis points)		0.25%
Debt instrument variable rate basis (percentage)				1.75%
Secured Debt \| Base Rate \| Consolidated net leverage ratio of 3.75x or less \| Term Loan B Facility due October 2023; bearing interest at LIBOR plus 3.00%
Debt Instrument [Line Items]
Debt instrument variable rate basis (percentage)				1.50%
New York Bonds 2016 \| Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-2 due January 2025 - fixed rate interest period through 2017; bore interest at 6.25%
Debt Instrument [Line Items]
Aggregate principal amount							$ 21,400,000
New York Bonds 2016 \| Finance Authority of Maine Solid Waste Disposal Revenue Bonds Series 2005R-3 due January 2025 - fixed rate interest period through 2025; bearing interest at 5.25%
Debt Instrument [Line Items]
Aggregate principal amount							$ 25,000,000
Debt instrument interest rate percentage							5.25%
Senior Subordinated Notes Due 2019 Notes
Debt Instrument [Line Items]
Debt instrument interest rate percentage			7.75%		7.75%
Revolving Credit Facility \| Line of Credit \| Revolving Credit Facility due October 2021
Debt Instrument [Line Items]
Revolving facility amount		$ 160,000,000