Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Current Assets
Cash	$ 73,588	$ 69,561
Trade receivables, less allowances for doubtful accounts of $28,963 and $31,757 at December 31, 2014 and March 31, 2014, respectively	692,748	701,060
Inventories, net	499,570	478,149
Deferred income tax asset, net	57,882	57,961
Prepaid expenses and other current assets	150,686	92,356
Total current assets	1,474,474	1,399,087
Plant and equipment at cost	5,209,437	4,931,064
Less accumulated depreciation	(2,303,074)	(2,128,649)
Plant and equipment, net	2,906,363	2,802,415
Goodwill	1,311,771	1,289,896
Other intangible assets, net	249,705	258,836
Other non-current assets	47,668	43,080
Total assets	5,989,981	5,793,314
Current Liabilities
Accounts payable, trade	203,305	196,911
Accrued expenses and other current liabilities	349,900	345,676
Short-term debt	416,314	387,866
Current portion of long-term debt	250,092	400,322
Total current liabilities	1,219,611	1,330,775
Long-term debt, excluding current portion	1,757,978	1,706,774
Deferred income tax liability, net	839,124	825,897
Other non-current liabilities	88,167	89,219
Commitments and contingencies
Stockholders' Equity
Preferred stock, 20,030 shares authorized, no shares issued or outstanding at December 31, 2014 and March 31, 2014	0	0
Common stock, par value $0.01 per share, 200,000 shares authorized, 87,504 and 87,353 shares issued at December 31, 2014 and March 31, 2014, respectively	875	874
Capital in excess of par value	839,198	789,789
Retained earnings	2,191,939	2,047,843
Accumulated other comprehensive income (loss)	(7,735)	529
Treasury stock, 12,477 and 13,264 shares at cost at December 31, 2014 and March 31, 2014, respectively	(939,176)	(998,386)
Total stockholders’ equity	2,085,101	1,840,649
Total liabilities and stockholders’ equity	$ 5,989,981	$ 5,793,314