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Debt - 7.5% Notes Due 2021 (Details) - Long-term Debt [Member] - Senior secured notes due June 01, 2021 [Member] - USD ($) | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2013 | Dec. 31, 2019 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |
Face amount | $ 250,000,000.0 |  |
Stated interest rate | 7.50% | 7.50% |
Proceeds from debt issuance | $ 246,300,000 |  |
Fair value of debt instrument |  | $ 244,200,000 | $ 247,900,000
Equity interests in foreign subsidiaries, percentage |  | 65.00% |
Redemptions rights after control change, percentage |  | 101.00% |
2018 [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Redemption price, percentage |  | 101.875% |
2019 and thereafter [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Redemptions rights after control change, percentage |  | 100.00% |

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- Definition The debt instrument is secured by a pledge of and lien on 65% of equity interests in foreign subsidiaries or foreign holding companies directly owned by Century and the guarantors. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: 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=114775744&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=118260190&loc=d3e13433-108611 + Details
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