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Long-Term Debt (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Line of Credit Facility [Line Items] |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 2,500,000 |  |
Line of Credit Facility, Borrowing Capacity, Term | 5 years |  |
Line of Credit Facility, Initiation Date | Sep. 23, 2016 |  |
Line of Credit Facility, Expiration Date | Sep. 23, 2021 |  |
Line of Credit Facility, Amount Outstanding | $ 1,930 |  |
Outstanding letters of credit | 74,100 |  |
Gain (Loss) on Extinguishment of Debt | $ (871) | $ 0 | $ 0
Debt covenant compliance | 3.5 |  |
Debt Instrument [Line Items] |  |  |
Total Debt | $ 6,209,536 | 3,271,222 |
Less unamortized debt issuance costs | (23,453) | (17,392) |
Current Portion | 400,975 | 6,805 |
Long-term debt, net of current portion | 5,808,561 | 3,264,417 |
Future maturities of long term debt [Abstract] |  |  |
2016 | 401,595 |  |
2017 | 800,840 |  |
2018 | 500,407 |  |
2019 | 600,147 |  |
2020 | 500,000 |  |
Thereafter | 3,430,000 |  |
Total | 6,232,989 |  |
Credit Facility Member 2016 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face value of debt | 1,930,000 | 0 |
Credit Facility Member 2012 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face value of debt | $ 0 | 180,000 |
Senior Notes 2017 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Nov. 21, 2012 |  |
Stated interest rate percentage - debt instruments | 1.85% |  |
Face value of debt | $ 400,000 | 400,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | May 15, 2013 |  |
Maturity date | Nov. 15, 2017 |  |
Senior Notes 2018 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Jun. 06, 2013 |  |
Stated interest rate percentage - debt instruments | 2.05% |  |
Face value of debt | $ 800,000 | 800,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | October 1, 2013 |  |
Maturity date | Oct. 01, 2018 |  |
Senior Notes 2019 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Sep. 15, 2009 |  |
Stated interest rate percentage - debt instruments | 6.25% |  |
Face value of debt | $ 500,000 | 500,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | March 1, 2010 |  |
Maturity date | Sep. 01, 2019 |  |
Senior Notes 2020 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Dec. 07, 2015 |  |
Stated interest rate percentage - debt instruments | 3.00% |  |
Face value of debt | $ 600,000 | 600,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | June 15, 2016 |  |
Maturity date | Dec. 15, 2020 |  |
Senior Notes 2021 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Dec. 19, 2016 |  |
Stated interest rate percentage - debt instruments | 2.80% |  |
Face value of debt | $ 500,000 | 0 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | June 15, 2017 |  |
Maturity date | Dec. 15, 2021 |  |
Senior Notes 2022 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Nov. 21, 2012 |  |
Stated interest rate percentage - debt instruments | 3.125% |  |
Face value of debt | $ 500,000 | 500,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | May 15, 2013 |  |
Maturity date | Nov. 15, 2022 |  |
Senior Notes 2025 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Dec. 07, 2015 |  |
Stated interest rate percentage - debt instruments | 3.85% |  |
Face value of debt | $ 300,000 | 300,000 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | June 15, 2016 |  |
Maturity date | Dec. 15, 2025 |  |
Senior Notes 2026 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Issuance date | Dec. 19, 2016 |  |
Stated interest rate percentage - debt instruments | 3.80% |  |
Face value of debt | $ 700,000 | 0 |
Periodic interest payments | semi-annually |  |
Periodic interest payments, start | June 15, 2017 |  |
Maturity date | Dec. 15, 2026 |  |
Senior Notes Total [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face value of debt | $ 4,300,000 |  |
Capital Lease Obligations And Foreign Letter Of Credit Issuance [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Face value of debt | $ 2,989 | 4,435 |
Senior Subordinated Notes [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Stated interest rate percentage - debt instruments | 3.75% |  |
Face value of debt | $ 0 | $ 4,179 |
Subordinated Convertible Notes |  |  |
Subordinated convertible notes, original public offering amount | 230,000 |  |
Cash payments for debt conversions | $ 18,500 |  |

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- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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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 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 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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 Reference 3: 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 + Details
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- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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