Fair Value of Financial Instruments	12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	The Company had $0.1 million and $0.7 million of cash equivalents at December 31, 2020 and 2019, respectively, which were primarily investments in money market funds and overnight deposits. The Company has categorized its cash equivalents as a Level 1 financial assets, measured at fair value based on quoted prices in active markets of identical assets. All cash equivalents are in instruments that are convertible to cash daily. The fair values of the Company’s derivative contracts as of December 31, 2020 and 2019 are disclosed in Note 4, "Derivative Financial Instruments," and are based on Level 2 inputs. The fair value of the Company's borrowings under the Credit Agreement as described in Note 11, "Debt," as of December 31, 2020 approximates the carrying value. The fair value of the Company’s senior unsecured 2030 notes as described in Note 11, "Debt," was approximately $527.7 million based upon Level 2 inputs at December 31, 2020. The Company’s senior unsecured 2021 notes were redeemed in full in connection with the Company’s August 2020 issuance of the Company’s senior unsecured 2030 notes in a public offering. The fair value of the Company’s senior unsecured 2021 notes as described in Note 11, "Debt," was $430.1 million based upon Level 2 inputs at December 31, 2019. The fair value of observable price changes related to the Company's minority interest equity investments, as discussed in Note 1, "Nature of Business and Significant Accounting Policies," are based on Level 3 inputs. The Company does not have any other significant financial assets or liabilities that are measured at fair value.See the discussion of accounting guidance for fair value measurements and the factors used in determining the fair value of financial assets and liabilities as disclosed in Note 1,

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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