Debt - Schedule of Outstanding Debt (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Debt Instrument, maturity date	May 15, 2019
Face value of outstanding debt	$ 3,079,790	$ 3,664,794
Carrying amount of outstanding debt	3,088,000	3,730,000
Face value of total debt outstanding	3,102,208	3,750,911
Less current portion of debt outstanding	(22,418)	(86,117)
Senior Secured Credit [Member] \| Term Loan B [Member]
Debt Instrument [Line Items]
Rate	L + 3.00%
Debt Instrument, maturity date	Feb. 19, 2019
Face value of outstanding debt	1,743,938	1,757,250
Senior Secured Credit [Member] \| Term Loan B Incremental Term Loan Facility [Member]
Debt Instrument [Line Items]
Rate	L + 3.00%
Debt Instrument, maturity date	Feb. 19, 2019
Face value of outstanding debt	346,500	349,125
Senior Secured Credit [Member] \| Term Loan C [Member]
Debt Instrument [Line Items]
Rate	L + 2.50%
Debt Instrument, maturity date	Dec. 31, 2017
Face value of outstanding debt	49,313	361,250
Senior Secured Credit [Member] \| Revolver L Plus Two Point Seven Five Percent Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Rate	L + 2.75%
Carrying amount of outstanding debt	0	0
Senior Secured Credit [Member] \| Revolver L Plus Three Point Two Five Percent Two Thousand Eighteen [Member]
Debt Instrument [Line Items]
Rate	L + 3.25%
Debt Instrument, maturity date	Feb. 19, 2018
Carrying amount of outstanding debt	0	0
Senior Secured Credit [Member] \| Revolver L Plus Three Percent Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Debt Instrument, maturity date	Feb. 19, 2019
Senior unsecured notes due 2016 [Member] \| Eight Point Thirty Five Percent Two Thousand Sixteen [Member]
Debt Instrument [Line Items]
Rate	8.35%
Debt Instrument, maturity date	Mar. 31, 2016
Face value of outstanding debt	400,000	400,000
Senior secured notes due 2019 [Member] \| Eight Point Five Percent Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Rate	8.50%
Debt Instrument, maturity date	May 15, 2019
Carrying amount of outstanding debt	480,000	800,000
Mortgage Facility [Member] \| Five Point Eight Percent Two Thousand Seventeen [Member]
Debt Instrument [Line Items]
Rate	5.80%
Debt Instrument, maturity date	Mar. 31, 2017
Face value of outstanding debt	$ 82,457	$ 83,286
LIBOR [Member] \| Senior Secured Credit [Member] \| Term Loan B [Member]
Debt Instrument [Line Items]
Rate	3.00%
LIBOR [Member] \| Senior Secured Credit [Member] \| Term Loan B Incremental Term Loan Facility [Member]
Debt Instrument [Line Items]
Rate	3.00%
LIBOR [Member] \| Senior Secured Credit [Member] \| Term Loan C [Member]
Debt Instrument [Line Items]
Rate	2.50%
LIBOR [Member] \| Senior Secured Credit [Member] \| Revolver L Plus Two Point Seven Five Percent Two Thousand Nineteen [Member]
Debt Instrument [Line Items]
Rate	2.75%
LIBOR [Member] \| Senior Secured Credit [Member] \| Revolver L Plus Three Point Two Five Percent Two Thousand Eighteen [Member]
Debt Instrument [Line Items]
Rate	3.25%

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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 210.5-02.19,20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19

-Article 5

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

Reference 2: 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)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-Name Regulation S-X (SX)

-Number 210

-Section 03

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+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The average effective interest rate during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Topic 210

-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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+ Details

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- Details

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Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Topic 210

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-Subparagraph (SX 210.5-02.22(a)(2))

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+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity.

+ 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 210.5-02.19(b),22(b))

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

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+ Details

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Period Type:	duration

- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant