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Debt (Narrative) (Details) - USD ($) |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Mar. 02, 2020 | Sep. 30, 2022 | Dec. 31, 2021 | Dec. 31, 2022
Line of Credit Facility [Line Items] |  |  |  |
Borrowings under revolving credit facility (in US dollars) |  | $ 170,000,000 | $ 0 |
Letters of credit outstanding (in US dollars) |  | $ 71,400,000 | 71,300,000 |
Interest rate description |  | At the Company’s election, borrowings under the 2020 Credit Agreement bear interest at either: (1) a base rate plus a margin of 0.00% to 0.75%, based on certain financial tests, or (2) United States dollar LIBOR (3.67% at September 30, 2022) plus 1.00% to 1.75%, based on certain financial tests. The base rate is determined by the greater of: (a) the prime commercial lending rate announced by Bank of Montreal from time to time (6.25% at September 30, 2022), (b) the federal funds effective rate, plus 1/2 of 1.00%, (c) the daily one month LIBOR rate, plus 1.00%, or (d) 0.00%. Upon the discontinuation of LIBOR, our 2020 Credit Agreement contains provisions which allow for the use of alternate benchmark rates. The weighted average interest rates in effect at September 30, 2022 were 4.67% for the 2020 Term Loan and 4.20% for the 2020 Revolving Credit Facility. The interest rate in effect at December 31, 2021 for the 2020 Term Loan was 1.10%. A commitment fee is payable on the average daily unused amount of the 2020 Revolving Credit Facility, which ranges from 0.10% to 0.25%, based on certain financial tests. The fee was 0.10% of the unused amount as of September 30, 2022 and December 31, 2021. Fees for letters of credit issued under the 2020 Revolving Credit Facility range from 0.75% to 1.75% of the respective face amounts of outstanding letters of credit, depending on the nature of the letter of credit, and are computed based on certain financial tests. |  |
2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Credit agreement, initiation date | Mar. 02, 2020 |  |  |
Expiration date of credit agreement |  | Mar. 02, 2025 |  |
Debt issuance costs | $ 3,100,000 |  |  |
2020 Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Borrowings under revolving credit facility (in US dollars) |  | $ 170,000,000 | 0 |
Interest rate |  | 4.20% |  |
2020 Term Loan |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Term Loan (in US dollars) | 300,000,000 | $ 256,688,000 | $ 256,688,000 |
Interest rate |  | 4.67% | 1.10% |
2020 Term Loan | Subsequent Event |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Term loan, annual principal payments (in US dollars) |  |  |  | $ 13,900,000
Base Rate [Member] | Minimum [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.00% |  |
Base Rate [Member] | Maximum [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.75% |  |
Prime Rate, Bank of Montreal [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Commercial lending rate |  | 6.25% |  |
Credit Agreement Base Rate, Daily One Month LIBOR Rate [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.00% |  |
London Interbank Offered Rate (LIBOR) [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Commercial lending rate |  | 3.67% |  |
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.00% |  |
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 1.75% |  |
Credit Agreement Base Rate, Federal Funds Rate [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.50% |  |
Credit Agreement, 0% Base Rate [Member] | 2020 Credit Agreement |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Basis spread on variable rate |  | 0.00% |  |
Revolving Credit Facility [Member] | 2020 Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit facility maximum borrowing capacity (in US dollars) | $ 1,300,000,000 |  |  |
Increase in borrowing capacity (in US dollars) |  | $ 1,900,000,000 |  |
Letters of credit maximum borrowing capacity (in US dollars) |  | $ 400,000,000 |  |
Commitment fee percentage of unused amount |  | 0.10% | 0.10% |
Revolving Credit Facility [Member] | Minimum [Member] | 2020 Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Commitment fee percentage of unused amount |  | 0.10% |  |
Letter of credit fees |  | 0.75% |  |
Revolving Credit Facility [Member] | Maximum [Member] | 2020 Revolving Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Commitment fee percentage of unused amount |  | 0.25% |  |
Letter of credit fees |  | 1.75% |  |

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- Definition Amount, before 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 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28555-108399 + Details
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