Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Sep. 30, 2021 |
Dec. 31, 2020 |
Sep. 30, 2020 |
|---|---|---|---|
| Statement of Financial Position [Abstract] | |||
| Allowance for Doubtful Accounts, Premiums and Other Receivables | $ 10,847 | $ 21,810 | $ 29,760 |
| Property, Plant, and Equipment, Owned, Accumulated Depreciation | $ 591,795 | $ 574,247 | $ 550,097 |
| Preferred Stock, Shares Authorized | 10,000,000 | 10,000,000 | 10,000,000 |
| Preferred Stock, Shares Issued | 0 | 0 | 0 |
| Preferred Stock, Shares Outstanding | 0 | 0 | 0 |
| Common Stock, Shares Authorized | 250,000,000 | 250,000,000 | 250,000,000 |
| Common Stock, Shares, Outstanding | 65,501,000 | 66,252,000 | 66,210,000 |
| Common Stock, Shares, Issued | 65,501,000 | 66,252,000 | 66,210,000 |
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- Definition The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of depreciation (related to long-lived, depreciable flight assets owned by the entity and used in the entity's principle business operations and capitalized assets classified as property, plant and equipment that are owned by the entity) that has been recognized in the income statement. No definition available.
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- References No definition available.
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