Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Mar. 31, 2018
Current assets:
Cash and cash equivalents at beginning of period	$ 1,677,389	$ 2,179,328
Short-term investments	1,686,809	1,268,242
Accounts receivable, net	456,898	382,246	[1]
Inventories	247,001	236,077
Prepaid expenses and other current assets	57,448	88,695
Total current assets	4,125,545	4,154,588	[1]
Property, plant and equipment, at cost:	871,411	855,023
Accumulated depreciation and amortization	(559,327)	(550,906)
Net property, plant and equipment	312,084	304,117
Long-term investments	91,700	97,896
Goodwill	162,421	162,421
Acquisition-related intangibles, net	3,763	4,123
Other assets	359,679	337,402	[1]
Total Assets	5,055,192	5,060,547	[1]
Current liabilities:
Accounts payable	105,484	98,999
Accrued payroll and related liabilities	198,602	206,367
Income taxes payable	82,410	47,713
Other accrued liabilities	56,696	59,680	[1]
Long-term Debt, Current Maturities	499,407	499,186
Total current liabilities	942,599	911,945	[1]
Long-term Debt, Excluding Current Maturities	1,207,387	1,214,440
Long-term income taxes payable	530,167	523,864
Other long-term liabilities	56,401	49,945
Commitments and contingencies (Note 17)
Stockholders' equity:
Preferred stock, $.01 par value (none issued and outstanding)	0	0
Common stock, $.01 par value	2,515	2,534
Additional paid-in capital	894,588	878,672
Retained earnings	1,457,467	1,513,656	[1]
Accumulated other comprehensive loss	(35,932)	(34,509)
Total stockholders’ equity	2,318,638	2,360,353	[1]
Total Liabilities and Stockholders’ Equity	$ 5,055,192	$ 5,060,547	[1]

[1] Prior year balances have been restated to reflect the retrospective application of the new revenue recognition accounting standard. Please refer to "Note 2. Recent Accounting Changes and Accounting Pronouncements."