Debt instrument interest additional interest above eurodollar rate.

No definition available.

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- Definition

Debt instrument interest additional interest above federal fund rate.

+ References

No definition available.

+ Details

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- Definition

Debt instrument interest additional interest above base rate.

+ References

No definition available.

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- Definition

Debt Instrument, Issue Price, Percent

+ References

No definition available.

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- Definition

Debt Instrument, Number of Debt Agreement Amendments

+ References

No definition available.

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- Definition

Debt Instrument, Redemption Price, Percentage of Principal Amount That May Be Redeemed

+ References

No definition available.

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- Definition

Floating Euro Dollar Based Rate

+ References

No definition available.

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- Definition

Line of Credit Facility, Frequency of Payments, Number of Quarterly Installments

+ References

No definition available.

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- Definition

Maximum applicable margin rate.

+ References

No definition available.

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- Definition

Minimum applicable margin rate.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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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

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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- Definition

Fair value of all derivatives designated as interest rate fair value hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

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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.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. 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 FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Debt (Detail)			3 Months Ended
Debt (Detail)	Mar. 30, 2017 USD ($)	Mar. 20, 2017 installment	Mar. 31, 2017 USD ($) amendment	Apr. 05, 2017 USD ($)	Dec. 31, 2016 USD ($)
Debt Instrument [Line Items]
Long-term debt, gross			$ 1,657,500,000		$ 702,500,000
Debt instrument, effective percentage			2.89%
Long-term debt			$ 1,628,697,000		694,391,000
Bank Term Loan
Debt Instrument [Line Items]
Long-term debt, gross			$ 585,000,000		585,000,000
Debt instrument interest additional interest above base rate			1.25%
Connecticut Economic Development Program
Debt Instrument [Line Items]
Long-term debt, gross			$ 2,500,000.0		2,500,000
Revolving credit facility
Debt Instrument [Line Items]
Long-term debt, gross			$ 270,000,000		$ 115,000,000
Floating eurodollar based rate			0.98%
Debt instrument interest additional interest above base rate			1.25%
Line of credit facility, remaining borrowing capacity			$ 927,000,000
Interest rate swaps
Debt Instrument [Line Items]
Interest rate, fair value hedge derivative at fair value, net (negative fair value)			$ 6,600,000
2016 Agreement
Debt Instrument [Line Items]
Debt instrument, number of debt agreement amendments \| amendment			2
Debt instrument, interest, additional interest above eurodollar rate		1.00%
2016 Agreement \| Federal Funds Rate
Debt Instrument [Line Items]
Debt instrument interest additional interest above federal fund rate		0.50%
Minimum applicable margin rate		0.125%
Maximum applicable margin rate		1.50%
2016 Agreement \| Euro Dollar rate
Debt Instrument [Line Items]
Minimum applicable margin rate		1.125%
Maximum applicable margin rate		2.50%
2016 Agreement \| Bank Term Loan
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 600,000,000.0
Long-term debt, gross			585,000,000
2016 Agreement \| Revolving credit facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			1,200,000,000.0
Long-term debt, gross			270,000,000
Line of credit facility, frequency of payments, number of quarterly installments \| installment		16
Subsequent Event
Debt Instrument [Line Items]
Long-term debt				$ 3,600,000,000
CEB \| Senior Notes
Debt Instrument [Line Items]
Long-term debt, gross	$ 800,000,000		$ 800,000,000
Debt instrument, issue price, percent	100.00%
Debt instrument, redemption, prince, percentage of principal amount that may be redeemed	40.00%
CEB \| Debt instrument, redemption with the proceeds of certain equity offerings \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	105.125%
CEB \| Debt instrument, redemption excluding make whole premium \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	100.00%
CEB \| Debt instrument, redemption due to specific kinds of change of control \| Senior Notes
Debt Instrument [Line Items]
Debt instrument, redemption price, percentage	101.00%