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v3.21.1

Debt (Narrative) (Details) |  |  |  | 3 Months Ended |
--- | --- | --- | --- | --- | ---
Oct. 07, 2020 USD ($) fiscalQuarterPeriod | Nov. 15, 2019 USD ($) tradingDay | Jun. 10, 2014 USD ($) tradingDay | Mar. 31, 2021 USD ($) tradingDay $ / shares | Dec. 31, 2020 USD ($) tradingDay | Apr. 07, 2021 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |
Fair value of debt instruments |  |  |  | $ 2,100,000,000 | $ 2,000,000,000.0 |
Deferred issuance costs |  |  |  | (10,581,000) | (11,505,000) |
Revolving Credit Facility | Subsequent Event |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  | $ 100,000,000
Total aggregate commitment |  |  |  |  |  | 350,000,000
Increase available |  |  |  |  |  | $ 250,000,000
Senior Notes | 4.625% Senior Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 4.625% |  |  |  |  |
Face amount | $ 750,000,000 |  |  |  |  |
Proceeds from debt, net of issuance costs | $ 742,700,000 |  |  |  |  |
Percentage principal outstanding to be eligible for redemption | 50.00% |  |  |  |  |
Covenant, leverage ratio, minimum | 3.5 |  |  |  |  |
Covenant restricted payment threshold | $ 250,000,000 |  |  |  |  |
Covenant, EBITDA minimum | 50.00% |  |  |  |  |
Covenant, EBITDA minimum, fiscal quarter period | fiscalQuarterPeriod | 4 |  |  |  |  |
Fair value of debt instruments |  |  |  | 760,300,000 | 796,900,000 |
Outstanding debt originating from the Paycheck Protection Program |  |  |  | 750,000,000 | 750,000,000 |
Senior Notes | 4.625% Senior Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Redemption price, percentage | 104.625% |  |  |  |  |
Percentage of principal amount redeemed | 40.00% |  |  |  |  |
Senior Notes | 4.625% Senior Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Redemption price, percentage | 100.00% |  |  |  |  |
Senior Notes | 6.0% Senior Notes [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate | 6.00% |  |  |  |  |
Convertible Debt |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Outstanding debt originating from the Paycheck Protection Program |  |  |  | 1,702,413,000 | 1,702,414,000 |
Convertible Debt | 3.25% Convertible Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate |  |  | 3.25% |  |  |
Face amount |  |  | $ 402,500,000 |  |  |
Redemption price, percentage |  |  | 100.00% |  |  |
Fair value of debt instruments |  |  |  | $ 682,000,000.0 | $ 593,100,000 |
Contingent interest, minimum trading price per principal amount |  |  | $ 1,300 |  |  |
Convertible debt threshold trading days | tradingDay |  |  |  | 20 | 20 |
Convertible debt conversion ratio |  |  |  | 0.0147632 |  |
Percentage of stock price |  |  |  | 130.00% | 130.00% |
Convertible debt conversion price (in usd per share) | $ / shares |  |  |  | $ 67.74 |  |
Borrowing rates of similar debt without the conversion feature |  |  | 5.79% |  |  |
Unamortized discount |  |  | $ 59,000,000.0 |  |  |
Effective interest rate |  |  | 5.81% |  |  |
Convertible debt carrying amount of equity component |  |  | $ 37,700,000 |  |  |
Convertible debt remaining discount amortization period |  |  |  | 2 months 12 days |  |
Outstanding debt originating from the Paycheck Protection Program |  |  |  | $ 402,413,000 | $ 402,414,000 |
Convertible Debt | 3.25% Convertible Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt threshold trading days | tradingDay |  |  | 20 |  |  |
Convertible debt threshold consecutive trading days | tradingDay |  |  | 30 |  |  |
Convertible debt conversion ratio |  |  | 1.30 |  |  |
Convertible Debt | 3.25% Convertible Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt threshold consecutive trading days | tradingDay |  |  | 10 |  |  |
Convertible debt conversion ratio |  |  | 0.98 |  |  |
Convertible debt threshold consecutive business days | tradingDay |  |  | 5 |  |  |
Convertible Debt | 1.75% Convertible Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate |  | 1.75% |  |  |  |
Face amount |  | $ 550,000,000.0 |  |  |  |
Proceeds from debt, net of issuance costs |  | $ 537,100,000 |  |  |  |
Fair value of debt instruments |  |  |  | $ 648,300,000 | 569,700,000 |
Convertible debt conversion ratio |  |  |  | 0.0079864 |  |
Convertible debt conversion price (in usd per share) | $ / shares |  |  |  | $ 125.21 |  |
Borrowing rates of similar debt without the conversion feature |  | 5.50% |  |  |  |
Unamortized discount |  | $ 118,900,000 |  |  |  |
Effective interest rate |  | 5.50% |  |  |  |
Convertible debt carrying amount of equity component |  | $ 88,100,000 |  |  |  |
Convertible debt remaining discount amortization period |  |  |  | 5 years 7 months 6 days |  |
Unamortized debt issuance expense |  |  |  | $ 8,600,000 |  |
Gross debt issuance costs |  | 12,900,000 |  |  |  |
Accumulated amortization of debt issuance costs |  | 10,100,000 |  |  |  |
Deferred issuance costs |  | $ (2,800,000) |  |  |  |
Outstanding debt originating from the Paycheck Protection Program |  |  |  | 550,000,000 | 550,000,000 |
Convertible Debt | 1.75% Convertible Notes | Debt Instrument, Redemption, Period One |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt threshold trading days | tradingDay |  | 20 |  |  |  |
Convertible debt threshold consecutive trading days | tradingDay |  | 30 |  |  |  |
Convertible debt conversion ratio |  | 1.30 |  |  |  |
Convertible Debt | 1.75% Convertible Notes | Debt Instrument, Redemption, Period Two |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Convertible debt threshold trading days | tradingDay |  | 5 |  |  |  |
Convertible debt threshold consecutive trading days | tradingDay |  | 10 |  |  |  |
Convertible debt conversion ratio |  | 0.98 |  |  |  |
Loans Payable | Paycheck Protection Program, CARES Act |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Outstanding debt originating from the Paycheck Protection Program |  |  |  | $ 910,000 | $ 910,000 |

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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/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -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=120400017&loc=d3e572229-122910 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)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -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=120398452&loc=d3e534808-122878 + Details
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- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. + References No definition available. + 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 Contractual interest rate for funds borrowed, under the debt 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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