Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments and Hedging Activities - Additional Information (Details)

v3.19.1
Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)
3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2019
Jun. 30, 2018
Dec. 31, 2014
Oct. 31, 2014
Derivative          
Unamortized portion of the fair value of the forward contracts $ 4,200,000 $ 4,200,000      
Realized net loss 1,379,000 6,567,000      
2018 Rate lock agreements          
Derivative          
Unamortized portion of the fair value of the forward contracts 13,500,000 $ 13,500,000      
2018 Rate lock agreements | Senior notes          
Derivative          
Realized net loss $ (13,600,000)        
Derivatives designated as hedging instruments | Cash flow hedge contracts - foreign currency | Portion of senior notes | Treasury lock | Senior notes          
Derivative          
Unrealized gains (losses) on cash flow hedges       $ 7,500,000  
Derivative, notional amount         $ 1,000,000,000.00
Derivatives designated as hedging instruments | Cash flow hedge contracts - foreign currency | 2018 Rate lock agreements | Treasury lock | Senior notes          
Derivative          
Derivative, notional amount     $ 500,000,000