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Subsequent Events - Additional Information (Details) - Subsequent Event
Apr. 12, 2019
USD ($)
Amended Credit Facility  
Subsequent Event [Line Items]  
Aggregate total revolving credit commitments $ 400,000,000
Credit facility term 4 years
Amended Credit Facility | Maximum  
Subsequent Event [Line Items]  
Credit facility extension term 12 months
Term Loan Facility  
Subsequent Event [Line Items]  
Additional available amount under the facility $ 200,000,000
Credit facility term 5 years