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v3.21.1

Debt - Additional Information (Details) |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 21, 2021 USD ($) | Mar. 09, 2021 USD ($) trading_day $ / shares | Sep. 30, 2019 USD ($) | Mar. 31, 2021 USD ($) trading_day | Mar. 31, 2020 USD ($) | Dec. 31, 2020 USD ($)
Line Of Credit Facility |  |  |  |  |  |
Outstanding borrowings |  |  |  | $ 0 |  | $ 0
Letter of credit outstanding |  |  |  | 2,000,000 |  |
Increase in net borrowings on revolving line of credit |  |  |  | 0 | $ 0 |
Revolving Credit Facility | 2019 Credit Agreement |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity |  |  | $ 400,000,000 |  |  |
Outstanding borrowings |  |  |  | 0 |  |
Line of credit facility, unused borrowing capacity |  |  |  | $ 400,000,000 |  |
Revolving Credit Facility | 2019 Credit Agreement | Prime Commercial Lending Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Effective percentage interest rate |  |  |  | 3.38% |  |
Revolving Credit Facility | 2019 Credit Agreement | Libor Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Effective percentage interest rate |  |  |  | 1.24% |  |
Revolving Credit Facility | 2019 Credit Agreement | Minimum | Prime Commercial Lending Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate |  |  | 0.125% |  |  |
Revolving Credit Facility | 2019 Credit Agreement | Minimum | Libor Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate |  |  | 1.125% |  |  |
Revolving Credit Facility | 2019 Credit Agreement | Maximum | Prime Commercial Lending Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate |  |  | 0.75% |  |  |
Revolving Credit Facility | 2019 Credit Agreement | Maximum | Libor Rate |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate |  |  | 1.75% |  |  |
Revolving Credit Facility | 2019 Credit Agreement | Letter of Credit |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity |  |  | $ 25,000,000 |  |  |
Revolving Credit Facility | New Credit Agreement | Subsequent Event |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 1,400,000,000 |  |  |  |  |
Revolving Credit Facility | Senior Revolving Credit Facility | Subsequent Event |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Revolving credit facility, maximum borrowing capacity | 500,000,000 |  |  |  |  |
Increase in net borrowings on revolving line of credit | $ 250,000,000 |  |  |  |  |
Revolving Credit Facility | Senior Revolving Credit Facility | Minimum | Libor Rate | Subsequent Event |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate | 1.125% |  |  |  |  |
Revolving Credit Facility | Senior Revolving Credit Facility | Maximum | Libor Rate | Subsequent Event |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Line of credit facility interest rate | 1.75% |  |  |  |  |
Revolving Credit Facility | Term Loan | Subsequent Event |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Increase in net borrowings on revolving line of credit | $ 900,000,000 |  |  |  |  |
Senior Notes | Convertible Senior Notes Due 2026 |  |  |  |  |  |
Line Of Credit Facility |  |  |  |  |  |
Effective percentage interest rate |  |  |  | 0.36% |  |
Debt instrument, interest rate, stated percentage |  | 0.25% |  |  |  |
Convertible senior notes |  | $ 600,000,000 |  | $ 600,000,000 |  |
Net proceeds from issuance |  | 591,400,000 |  | 594,000,000 |  |
Initial purchasers discount |  | 6,000,000.0 |  | $ 5,934,000 |  |
Debt issuance costs |  | $ 2,600,000 |  |  |  |
Observation period (days) | trading_day |  |  |  | 30 |  |
Initial conversion rate (shares) |  | 0.20266% |  |  |  |
Initial conversion price | $ / shares |  | $ 493.44 |  |  |  |
Common stock exceeds conversion price percentage |  | 130.00% |  |  |  |
Debt instrument, convertible, threshold trading days | trading_day |  | 20 |  |  |  |
Consecutive trading days | trading_day |  | 30 |  |  |  |

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- Definition Dividend or interest rate associated with the financial instrument issued in exchange for the original debt being converted in a noncash or part noncash transaction. Noncash are transactions that affect recognized assets or liabilities but that do not result in cash receipts or cash payments. Part noncash refers to that portion of the transaction not resulting in cash receipts or cash payments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
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- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031898-161870 + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6036836-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28555-108399 + Details
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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 Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the noncurrent 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://fasb.org/us-gaap/role/ref/legacyRef -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=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1336-112600 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=99376301&loc=d3e1314-112600 + Details
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