XML 61 R48.htm IDEA: XBRL DOCUMENT v3.19.1
Retirement Benefit Plans (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Mar. 31, 2019
Mar. 31, 2018
Net Periodic Benefit Costs        
Service cost $ 98 $ 216 $ 295 $ 648
Interest cost 8 9 25 25
Amortization of prior service cost 14 70 42 210
Net periodic pension expense 120 295 362 883
Contributions made by the entity to the defined benefit plans 0 0 1,000 1,000
Contributions made by the entity to defined contribution plans $ 1,600 $ 1,600 $ 4,700 $ 4,600