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Debt and Credit Agreements - Changes in the Carrying Amount of Debt Obligations (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Nov. 15, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Long-term Debt [Roll Forward] |  |  |  |
Repayments |  | $ (200,000) | $ (90,000) | $ (77,000)
Prior Term Loan Facility | Line of Credit |  |  |  |
Long-term Debt [Roll Forward] |  |  |  |
Balance transfer | $ (80,000) |  |  |
Current Revolving Credit Facility | Line of Credit |  |  |  |
Long-term Debt [Roll Forward] |  |  |  |
Balance |  | 50,000 |  |
Proceeds |  | 150,000 |  |
Repayments |  | (200,000) |  |
Balance transfer | $ 80,000 |  |  |
Balance |  | $ 0 | $ 50,000 |

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- Definition Long-Term Debt, Transfer + References No definition available. + Details
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- Definition Long-term Debt [Roll Forward] + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + 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)(3) -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(a)(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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: 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 + Details
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- Definition The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
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- Details
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- Details
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- Details
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