Property, Plant and Equipment (Tables)

6 Months Ended

Sep. 30, 2015

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consists of the following (amounts in thousands):

	September 30, 2015		March 31, 2015
Land	$	63,934	$	55,624
Building and building improvements	451,594		434,403
Machinery and equipment	1,632,407		1,576,074
Projects in process	92,091		76,315
	2,240,026		2,142,416
Less accumulated depreciation and amortization	1,608,426		1,560,844
	$	631,600	$	581,572