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Employee Benefit Plans - Schedule of Changes in Fair Value of Plan Assets (Details) - Jun. 30, 2015 - Pension Plan, Defined Benefit - USD ($)
$ in Thousands
Total
Change in Benefit Obligation [Roll Forward]  
Benefit obligation - beginning $ 159,715
Service cost 152
Interest cost 2,840
Actuarial gain (2,881)
Benefits paid (2,064)
Currency changes 1,318
Benefit obligation - ending 159,080
Change in Plan Assets [Roll Forward]  
Fair value of plan assets - beginning 122,780
Actual return 1,944
Employer contribution 305
Benefits paid (2,064)
Currency changes 1,068
Fair value of plan assets - ending 124,033
Underfunded status $ (35,047)