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Segment Information (Details 1) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2017
Summary of revenues and long lived assets according to geographic areas                      
Revenues $ 398,714 $ 358,887 $ 340,568 $ 318,511 $ 293,087 $ 245,645 $ 282,911 $ 269,910 $ 1,416,680 $ 1,091,553 $ 1,197,509
Long-Lived Assets 216,084       200,987       216,084 200,987 227,400
UNITED STATES                      
Summary of revenues and long lived assets according to geographic areas                      
Long-Lived Assets 193,472       174,241       193,472 174,241 193,164
CANADA                      
Summary of revenues and long lived assets according to geographic areas                      
Long-Lived Assets 10,110       13,738       10,110 13,738 21,419
Other international [Member]                      
Summary of revenues and long lived assets according to geographic areas                      
Long-Lived Assets $ 12,502       $ 13,008       $ 12,502 $ 13,008 $ 12,817