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Summary of Significant Accounting Policies and Procedures and Recent Accounting Pronouncements - Derivative and Hedging Activities (Details) | Dec. 31, 2018 USD ($) derivative
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Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Number of interest rate swaps | 3
Number of interest rate swaps for each term loan | 1
Senior Unsecured Term Loans |
Derivative Instruments and Hedging Activities Disclosures [Line Items] |
Debt instrument, face amount | $ | $ 250,000,000.0

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