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Financial Instruments and Fair Value Measurements - Schedule of Long-term Debt Carrying Value and Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Carrying Value
Debt Instrument [Line Items]
Debt, fair value	$ 913,559	$ 920,002
Carrying Value | 5.00% Senior Notes
Debt Instrument [Line Items]
Debt, fair value	544,591	543,730
Carrying Value | 5.25% Senior Notes
Debt Instrument [Line Items]
Debt, fair value	297,035	296,735
Carrying Value | Real estate related
Debt Instrument [Line Items]
Debt, fair value	71,933	79,537
Fair Value
Debt Instrument [Line Items]
Debt, fair value	936,925	884,282
Fair Value | 5.00% Senior Notes
Debt Instrument [Line Items]
Debt, fair value	556,930	521,626
Fair Value | 5.25% Senior Notes
Debt Instrument [Line Items]
Debt, fair value	307,518	286,500
Fair Value | Real estate related
Debt Instrument [Line Items]
Debt, fair value	$ 72,477	$ 76,156

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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