Benefit Plans Level 3 (Tables)

9 Months Ended

Dec. 31, 2014

Notes To Financial Statements [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Components of the net periodic benefit cost for our defined benefit pension plans and other postretirement medical benefits plan were as follows:

	Defined Benefit Pension Plans						Other Postretirement Benefits Plan
Three Months Ended December 31,	2014			2013			2014			2013
Service cost	$	35		$	40		$	—		$	—
Interest cost	471			450			173			171
Expected return on plan assets	(785		)	(861		)	—			—
Amortization of loss	277			365			180			223
Amortization of prior service cost	—			—			(816		)	(816		)
Net periodic benefit cost	$	(2	)	$	(6	)	$	(463	)	$	(422	)

	Defined Benefit Pension Plans						Other Postretirement Benefits Plan
Nine Months Ended December 31,	2014			2013			2014			2013
Service cost	$	105		$	120		$	—		$	—
Interest cost	1,415			1,349			518			512
Expected return on plan assets	(2,355		)	(2,582		)	—			—
Amortization of loss	830			1,094			541			668
Amortization of prior service cost	—			—			(2,447		)	(2,447		)
Net periodic benefit cost	$	(5	)	$	(19	)	$	(1,388	)	$	(1,267	)