Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Identification of the lender and information about a contractual promise to repay a short-term or long-term obligation, which includes borrowings under lines of credit, notes payable, commercial paper, bonds payable, debentures, and other contractual obligations for payment. This may include rationale for entering into the arrangement, significant terms of the arrangement, which may include amount, repayment terms, priority, collateral required, debt covenants, borrowing capacity, call features, participation rights, conversion provisions, sinking-fund requirements, voting rights, basis for conversion if convertible and remarketing provisions. The description may be provided for individual debt instruments, rational groupings of debt instruments, or by debt in total.

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- Definition

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

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- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

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The average effective interest rate during the reporting period.

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- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

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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.

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No definition available.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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- Definition

Average amount borrowed under the credit facility during the period.

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No definition available.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Fair value of the amount outstanding under the credit facility.

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Maximum amount borrowed under the credit facility at any time during the period.

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No definition available.

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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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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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No definition available.

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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- Definition

The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

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Debt instrument date of last required payment 1.

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No definition available.

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Debt instrument date of last required payment 2.

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Debt instrument date of last required payment 3.

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No definition available.

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Debt instrument date of last required payment 4.

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- Definition

Debt instrument interest rate stated percentage adjustment.

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No definition available.

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Debt instrument interest rate stated percentage rate range minimum adjustment.

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No definition available.

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- Definition

Debt instrument maturity date extended.

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No definition available.

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- Definition

Debt instrument optional availability date.

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No definition available.

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- Definition

Debt instruments optional available tranche or revolving credit facility.

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No definition available.

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Debt Issuance Costs Capitalized

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No definition available.

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Debt Principal Amortization Rate

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Debt Principal Amortization Rate Thereafter

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Debt Principal Amortization Rate Year One

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Debt Principal Amortization Rate Year Two

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No definition available.

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Initial interest rate floor.

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No definition available.

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Line of credit facility aggregate principal amount.

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No definition available.

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Line of credit facility contingency description.

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Line of credit facility contingent term loan aggregate principal amount.

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Percentage of soft call premium.

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Long-Term Obligations - Senior Secured Term Loan Facility and Senior Secured Revolving Credit Facility - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Jun. 30, 2014
Debt Instrument [Line Items]
Repayments of remaining outstanding debt	$ 324,000,000	$ 197,765,000	$ 85,000,000
Payment of debt issuance cost	$ 4,848,000	$ 27,330,000	$ 30,760,000
2018 [Member]
Debt Instrument [Line Items]
Extended maturity date	Apr. 02, 2018
Fifth Amendment [Member]
Debt Instrument [Line Items]
Amortization on deferred financing costs	$ 5,300,000
Sixth Amendment [Member]
Debt Instrument [Line Items]
Senior secured credit facility, aggregate principal amount	$ 500,000,000
Debt instrument optional availability date	Jul. 01, 2014
Base Rate [Member] \| Floor [Member]
Debt Instrument [Line Items]
Interest rate floors	1.75%
Senior Secured Notes [Member] \| Sixth Amendment [Member] \| Twenty Sixteen [Member]
Debt Instrument [Line Items]
Payment of debt issuance cost	$ 2,300,000
Senior Secured Notes [Member] \| Sixth Amendment [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Debt instrument issuance date	Nov. 24, 2015
Debt instrument face amount	$ 250,000,000
Soft call option	1.00%
Senior Secured Notes [Member] \| LIBOR Rate [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Debt instrument maturity date	Nov. 24, 2021
Interest rate margins	3.50%
Senior Secured Notes [Member] \| LIBOR Rate [Member] \| Floor [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Interest rate floors	0.75%
Senior Secured Notes [Member] \| LIBOR Rate [Member] \| Sixth Amendment [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Interest rate margins	3.50%
Senior Secured Notes [Member] \| Base Rate [Member] \| Sixth Amendment [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Interest rate margins	2.50%
Senior Secured Notes [Member] \| Senior Secured Credit Facilities [Member] \| Fourth Amendment [Member]
Debt Instrument [Line Items]
Debt instrument issuance date	Jan. 24, 2014
Senior Secured Notes [Member] \| Senior Secured Credit Facilities [Member] \| Fifth Amendment [Member]
Debt Instrument [Line Items]
Debt instrument issuance date	Jul. 01, 2014
Senior Secured Notes [Member] \| Senior Secured Credit Facilities [Member] \| LIBOR Rate [Member] \| Fourth Amendment [Member]
Debt Instrument [Line Items]
Reduction in Basis point range minimum	(0.0025%)
Reduction in Basis point	(0.0025%)
Senior Secured Notes [Member] \| TLA [Member]
Debt Instrument [Line Items]
Debt instrument maturity date	Jul. 01, 2019
Senior Secured Notes [Member] \| TLA [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 500,000,000
Senior Secured Notes [Member] \| TLA [Member] \| Fifth Amendment [Member]
Debt Instrument [Line Items]
Debt instrument face amount	$ 350,000,000
Debt instrument description	The proceeds of the TLA were received on November 14, 2014 and were used to redeem in full the 7 7/8% senior notes
Debt amortization rate, 2015	2.50%
Debt amortization rate, 2016	5.00%
Debt amortization rate, 2017	7.50%
Debt amortization rate, thereafter	10.00%
Debt instrument date of last required payment, 2015	Jun. 30, 2015
Debt instrument date of last required payment, 2016	Jun. 30, 2016
Debt instrument date of last required payment, 2017	Jun. 30, 2017
Debt instrument frequently periodic payment	Quarterly
Senior Secured Notes [Member] \| TLA [Member] \| Fifth Amendment [Member] \| Greater Than [Member]
Debt Instrument [Line Items]
Debt instrument date of last required payment, thereafter	Jun. 30, 2017
Senior Secured Notes [Member] \| TLA [Member] \| Sixth Amendment [Member] \| Twenty Sixteen [Member]
Debt Instrument [Line Items]
Repayments of remaining outstanding debt	$ 250,000,000
Senior Secured Notes [Member] \| TLA [Member] \| Sixth Amendment [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Amortization on deferred financing costs	$ 4,600,000
Senior Secured Notes [Member] \| TLA [Member] \| LIBOR Rate [Member] \| Fifth Amendment [Member]
Debt Instrument [Line Items]
Interest rate margins	2.25%
Senior Secured Notes [Member] \| TLA [Member] \| LIBOR Rate [Member] \| Fifth Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate margins	1.50%
Senior Secured Notes [Member] \| TLA [Member] \| LIBOR Rate [Member] \| Fifth Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate margins	2.25%
Senior Secured Notes [Member] \| TLA [Member] \| Base Rate [Member] \| 2021 [Member]
Debt Instrument [Line Items]
Interest rate margins	2.50%
Senior Secured Notes [Member] \| TLA [Member] \| Base Rate [Member] \| Fifth Amendment [Member]
Debt Instrument [Line Items]
Interest rate margins	1.25%
Senior Secured Notes [Member] \| TLA [Member] \| Base Rate [Member] \| Fifth Amendment [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Interest rate margins	0.50%
Senior Secured Notes [Member] \| TLA [Member] \| Base Rate [Member] \| Fifth Amendment [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Interest rate margins	1.25%
Senior Secured Notes [Member] \| Senior Secured Revolving Credit Facility [Member] \| LIBOR Rate [Member] \| Floor [Member]
Debt Instrument [Line Items]
Interest rate floors	0.75%
Senior Secured Notes [Member] \| Senior Secured Revolving Credit Facility [Member] \| Base Rate [Member] \| Floor [Member]
Debt Instrument [Line Items]
Interest rate floors	1.75%
Senior Secured Notes [Member] \| Term Loans 2018 Maturity [Member] \| LIBOR Rate [Member] \| Fifth Amendment [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Interest rate margins	2.50%
Senior Secured Notes [Member] \| Term Loans 2018 Maturity [Member] \| Base Rate [Member] \| Fifth Amendment [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Interest rate margins	1.50%
Senior Secured Notes [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Effective annual interest rates, senior secured term loan facility	4.30%	4.05%
Line of Credit [Member] \| Senior Secured Revolving Credit Facility [Member] \| Revolving Credit Facility [Member] \| Fifth Amendment [Member] \| 2019 [Member]
Debt Instrument [Line Items]
Senior secured credit facility maturity date	Jul. 01, 2019
Senior secured credit facility, aggregate principal amount	$ 300,000,000
Line of credit facility contingency description	Provided that the maturity date shall be April 2, 2018 if an aggregate principal amount of $500.0 million or greater of 2018 Maturity Term Loans remains outstanding on such date.
Commitment fee	0.375%
Line of Credit [Member] \| Senior Secured Revolving Credit Facility [Member] \| Revolving Credit Facility [Member] \| Fifth Amendment [Member] \| Minimum [Member] \| 2018 [Member]
Debt Instrument [Line Items]
Senior secured credit facility, Contingent term loan aggregate principal amount	$ 500,000,000
Line of Credit [Member] \| Senior Secured Revolving Credit Facility [Member] \| Revolving Credit Facility [Member] \| Prior To Fifth Amendment [Member] \| Twenty Sixteen [Member]
Debt Instrument [Line Items]
Senior secured revolving credit facilities original maturity				$ 201,000,000
Senior secured credit facility maturity date	Jan. 15, 2016
Amount of outstanding balance	$ 0	$ 0
Average daily outstanding balance	5,000,000	$ 7,300,000
Highest average daily outstanding balance	$ 100,000,000
Line of Credit [Member] \| Senior Secured Revolving Credit Facility [Member] \| LIBOR Rate [Member] \| Revolving Credit Facility [Member] \| Fifth Amendment [Member] \| 2019 [Member]
Debt Instrument [Line Items]
Interest rate margins	2.25%
Line of Credit [Member] \| Senior Secured Revolving Credit Facility [Member] \| Base Rate [Member] \| Revolving Credit Facility [Member] \| Fifth Amendment [Member] \| 2019 [Member]
Debt Instrument [Line Items]
Interest rate margins	1.25%