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Debt - Additional Information (Detail) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | ---
Jan. 05, 2015 USD ($) | Mar. 28, 2015 USD ($) | Jan. 31, 2015 USD ($) | Nov. 30, 2014 USD ($) | Mar. 31, 2014 USD ($) | Jan. 30, 2013 USD ($) | Mar. 28, 2015 USD ($) | Mar. 29, 2014 USD ($) | Sep. 26, 2015 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Oct. 31, 2014 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 18,400,000 | $ 24,200,000 |  |
Payment for debt redeemed |  |  |  |  |  |  |  |  |  | 5,000,000 | 327,100,000 | $ 72,100,000 |
Loss on extinguishment of debt |  |  |  |  |  |  |  |  |  | 14,300,000 | 17,900,000 | 3,600,000 |
Cash restricted for use - repurchase of senior notes |  |  |  |  |  |  |  |  |  | 250,000,000 | 0 | 0 |
Use of restricted cash - acquisition of Eagle Ottawa |  |  |  |  |  |  |  |  |  | $ 350,000,000 | 0 | 0 |
Percentage owned, domestic subsidiaries |  |  |  | 1 |  |  |  |  |  | 1 |  |  |
Eagle Ottawa |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash used to finance the acquisition | $ 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2023 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 5,500,000 | $ 6,400,000 |  |
Long-term debt, aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 500,000,000 |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 4.75% | 4.75% |  |
Proceeds from issuance of debt |  |  |  |  |  | $ 500,000,000 |  |  |  |  |  |  |
Debt issuance costs |  |  |  |  |  | 7,400,000 |  |  |  |  |  |  |
2023 Notes | Prior to January 15, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Senior notes, redemption price percentage, make whole premium |  |  |  |  |  |  |  |  |  | 100.00% |  |  |
2024 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 3,200,000 | $ 3,600,000 |  |
Long-term debt, aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 325,000,000 |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 5.375% | 5.375% |  |
Proceeds from issuance of debt |  |  |  |  | $ 325,000,000 |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  |  | 3,900,000 |  |  |  |  |  |  |  |
2024 Notes | Prior to March 15, 2017 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Senior notes, redeemable percentage of the aggregate principal amount of the Notes in equity offerings |  |  |  |  |  |  |  |  |  | 35.00% |  |  |
Percentage of debt redemption price |  |  |  |  |  |  |  |  |  | 105.375% |  |  |
Outstanding original aggregate principal amount |  |  |  |  |  |  |  |  |  | 65.00% |  |  |
Redemption of notes, period from closing of equity offering |  |  |  |  |  |  |  |  |  | 90 days |  |  |
2024 Notes | Prior to March 15, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt redemption price |  |  |  |  |  |  |  |  |  | 100.00% |  |  |
2025 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 7,500,000 | $ 8,300,000 |  |
Long-term debt, aggregate principal amount |  |  |  |  |  |  |  |  |  | $ 650,000,000 |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 5.25% | 5.25% |  |
2025 Notes | Eagle Ottawa |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Use of restricted cash - acquisition of Eagle Ottawa | 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Restricted cash used to finance the acquisition | $ 350,000,000 |  |  |  |  |  |  |  |  |  |  |  |
2025 Notes | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 5.25% |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  | $ 650,000,000 |  |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  | $ 8,400,000 |  |  |  |  |  |  |  |  |
2025 Notes | Prior to January 15, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Senior notes, redeemable percentage of the aggregate principal amount of the Notes in equity offerings |  |  |  |  |  |  |  |  |  | 40.00% |  |  |
Percentage of debt redemption price |  |  |  |  |  |  |  |  |  | 105.25% |  |  |
Outstanding original aggregate principal amount |  |  |  |  |  |  |  |  |  | 50.00% |  |  |
2025 Notes | Prior to January 15, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of debt redemption price |  |  |  |  |  |  |  |  |  | 100.00% |  |  |
Redemption of notes, period from closing of equity offering |  |  |  |  |  |  |  |  |  | 120 days |  |  |
2018 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 7.875% |  |  |
Aggregate principal amount of debt redeemed |  |  |  |  |  | $ 70,000,000 |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  | 280,000,000 |  |  |  |  |  |  |  |
2020 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 0 | $ 3,200,000 |  |
Stated interest rate |  |  |  |  |  |  |  |  |  | 8.125% | 8.125% |  |
Loss on extinguishment of debt |  |  |  |  |  |  | $ 14,300,000 |  |  |  |  |  |
Repayments of Debt |  |  |  |  | $ 35,000,000 |  |  |  |  |  |  |  |
Percentage of debt redemption |  |  |  |  | 10.00% |  |  | 10.00% |  |  |  |  |
2020 Notes | Senior notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate principal amount of debt redeemed |  |  |  |  |  |  |  |  | $ 245,000,000 |  |  |  |
Percentage of debt redemption |  | 104.063% |  |  |  |  |  |  |  |  |  |  |
Cash restricted for use - repurchase of senior notes |  | $ 250,000,000 |  |  |  |  |  |  | $ 250,000,000 |  |  |  |
2020 Notes | Senior notes | Unsecured Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  |  |  |  | $ 14,300,000 |  |  |  |  |  |
Repayments of Senior Debt |  | $ 255,000,000 |  |  |  |  |  |  |  |  |  |  |
2018 and 2020 Notes |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for debt redeemed |  |  |  |  |  |  |  |  |  |  |  | 72,100,000 |
Loss on extinguishment of debt |  |  |  |  |  |  |  | $ 17,500,000 |  |  | $ 17,500,000 | $ 3,600,000 |
Repayments of Debt |  |  |  |  |  |  |  |  |  |  | 327,100,000 |  |
Credit Agreement — Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  | $ 2,200,000 | 2,700,000 |  |
Credit Agreement — Revolving Credit Facility | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, facility fee |  |  |  | 0.25% |  |  |  |  |  |  |  |  |
Credit Agreement — Revolving Credit Facility | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, facility fee |  |  |  | 0.50% |  |  |  |  |  |  |  |  |
Credit Agreement — Revolving Credit Facility | Eurocurrency Rate |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable interest rate, minimum |  |  |  | 1.00% |  |  |  |  |  |  |  |  |
Margin on variable interest rate, maximum |  |  |  | 2.25% |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 1.25% |  |  |
Credit Agreement — Revolving Credit Facility | Adjusted Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable interest rate, minimum |  |  |  | 0.00% |  |  |  |  |  |  |  |  |
Margin on variable interest rate, maximum |  |  |  | 1.25% |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 0.25% |  |  |
ASU 2015-03 | Other current assets |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  |  | 3,200,000 |  |
ASU 2015-03 | Other long-term assets |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Unamortized debt issuance fees |  |  |  |  |  |  |  |  |  |  | 21,000,000 |  |
Lines of credit |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, borrowing capacity |  |  |  |  |  |  |  |  |  | $ 10,000,000 | 5,300,000.0 |  |
Credit facility, amount outstanding, short-term |  |  |  |  |  |  |  |  |  | 0 | 0 |  |
Term Loan Facility | Credit Agreement — Term Loan Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, borrowing capacity |  |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |
Term loan facility borrowings |  |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |
Required principal payments |  |  |  |  |  |  |  |  |  | $ 9,400,000 |  |  |
Term Loan Facility | Credit Agreement — Term Loan Facility | Eurocurrency Rate |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable interest rate, minimum |  |  |  | 1.25% |  |  |  |  |  |  |  |  |
Margin on variable interest rate, maximum |  |  |  | 2.25% |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 1.375% |  |  |
Term Loan Facility | Credit Agreement — Term Loan Facility | Adjusted Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable interest rate, minimum |  |  |  | 0.25% |  |  |  |  |  |  |  |  |
Margin on variable interest rate, maximum |  |  |  | 1.25% |  |  |  |  |  |  |  |  |
Interest rate |  |  |  |  |  |  |  |  |  | 0.375% |  |  |
Term Loan Facility | Credit Agreement — Term Loan Facility | Eagle Ottawa |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  | $ 500,000,000 |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Debt issuance costs |  |  |  | $ 5,800,000 |  |  |  |  |  |  |  |  |
Loss on extinguishment of debt |  |  |  | 400,000 |  |  |  |  |  |  |  |  |
Revolving Credit Facility | Credit Agreement — Revolving Credit Facility |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, borrowing capacity |  |  |  | $ 1,250,000,000.00 |  |  |  |  |  |  |  |  | $ 1,000,000,000.0
Credit facility, amount outstanding |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  |
Credit facility, aggregate proceeds |  |  |  |  |  |  |  |  |  | 48,000,000 | 22,000,000 |  |
Credit facility - aggregate repayments |  |  |  |  |  |  |  |  |  | $ 48,000,000 | $ 22,000,000 |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: 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 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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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- Definition The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 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 210.5-02.20) -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 19, 20 -Article 5 + Details
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