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v3.20.1

Debt - Narrative (Details) | 3 Months Ended
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Mar. 31, 2020 USD ($) $ / shares | Mar. 31, 2019 USD ($)
Debt Instrument [Line Items] |  |
Total interest payments | $ 13,000,000.0 | $ 13,100,000
9% Convertible Junior Subordinated Debentures |  |
Debt Instrument [Line Items] |  |
Conversion rate (in shares per $1,000 note) | 0.0744718 |
Principal amount of notes used in determining conversion rate | $ 1,000 |
Convertible debt, conversion price (in dollars per share) | $ / shares | $ 13.43 |
Stated interest rate | 9.00% |
Senior Notes | 5.75% Senior Notes Due 2023 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 5.75% |

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- Definition The principal amount of notes used in the determination of the initial conversion rate, which is subject to adjustment. + References No definition available. + 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=109500613&loc=SL6031898-161870 + Details
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- Definition Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586 + Details
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