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Fair Value Measurements - Assets and Liabilities Measured on a Recurring Basis (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Jun. 30, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives Assets $ 644 $ 152
Total assets at fair value 644 152
Derivatives Liabilities 214 55
Total liabilities at fair value 214 55
Fair Value, Recurring [Member] | Level 2 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Derivatives Assets 644 152
Total assets at fair value 644 152
Derivatives Liabilities 214 55
Total liabilities at fair value $ 214 $ 55