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v3.23.1

Long-term debt - Narrative (Details) - USD ($) |  | 3 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 23, 2020 | Mar. 31, 2023 | Mar. 31, 2022 | Dec. 31, 2022 | Sep. 28, 2020 | Sep. 22, 2020
5.50% Senior Secured Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, gross |  | $ 113,050,000 |  | $ 114,050,000 |  |
Interest expense |  | $ 1,600,000 | $ 1,700,000 |  |  |
Senior Secured Notes | 5.50% Senior Secured Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  |  |  | 5.50%
Aggregate principal amount of debt issued |  |  |  |  |  | $ 125,000,000
Issue price (as a percent) |  |  |  |  |  | 100.00%
Redemption price (as a percent) | 99.80% |  |  |  |  |
Interest rate during period (as a percent) |  | 5.50% |  |  |  |
Debt issuance costs |  | $ 3,100,000 |  |  |  |
Debt issuance cost, amount paid to subsidiary |  | 1,900,000 |  |  |  |
Debt issuance costs capitalized |  | 1,200,000 |  |  |  |
Debt instrument, repurchase amount |  | 1,000,000 |  |  |  |
Notes outstanding |  | $ 113,050,000.00 |  |  |  |
Senior Secured Notes | 6.75% Senior Secured Notes |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Stated interest rate (as a percent) |  |  |  |  |  | 6.75%
Long-term debt, gross |  |  |  |  | $ 150,000,000 |
Long term debt held in treasury |  |  |  |  | 1,400,000 |
Long term debt outstanding, net of amount held in treasury |  |  |  |  | $ 148,600,000 |

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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 https://asc.fasb.org/extlink&oid=123466204&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 https://asc.fasb.org/extlink&oid=126734703&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 https://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 https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 + Details
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