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Long-Term Debt - Schedule Of Consolidated Total Or Net Leverage Ratio (Details) - Amended and Restated Credit Agreement [Member] | Jun. 30, 2017
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December 31, 2017 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 5.75
Maximum Consolidated Net Leverage Ratio | 5.75
March 31, 2018 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 5.50
Maximum Consolidated Net Leverage Ratio | 5.50
June 30, 2018 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 5.25
Maximum Consolidated Net Leverage Ratio | 5.25
September 30, 2018 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 5.00
Maximum Consolidated Net Leverage Ratio | 5.00
December 31, 2018 Through and Including March 31, 2019 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 4.50
Maximum Consolidated Net Leverage Ratio | 4.50
June 30, 2019 Through and Including September 30, 2019 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 4.25
Maximum Consolidated Net Leverage Ratio | 4.25
December 31, 2019 [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 4.00
Maximum Consolidated Net Leverage Ratio | 4.00
March 31, 2020 and Each Fiscal Quarter Thereafter [Member] |
Debt Instrument [Line Items] |
Maximum Consolidated Total Leverage Ratio | 3.50
Maximum Consolidated Net Leverage Ratio | 3.50

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- Definition Maximum Ratio of Consolidated Net Indebtedness to Consolidated EBITDA. + References No definition available. + Details
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- Definition Maximum Ratio of Consolidated Funded Indebtedness to Consolidated EBITDA. + References No definition available. + Details
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