Pension Plans (Narrative) (Details) $ in Thousands	3 Months Ended
	Jun. 30, 2016 USD ($)
Compensation and Retirement Disclosure [Abstract]
Actuarial losses due to decline in discount rates	$ 10,500
Actuarial gain due to settlements	700
Expected periodic pension cost in current fiscal year	2,900
Cash funding for benefits paid	107
Defined benefit pension plan liabilities, current	700
Defined benefit pension plan, liabilities, noncurrent	50,000
Defined benefit plan expected contributions in current fiscal year	$ 500