Accumulated Other Comprehensive Income (Loss)	9 Months Ended
Dec. 31, 2019
Disclosure Text Block [Abstract]
6. Comprehensive Income (Loss)	A summary of AOCI components, net of tax, were as follows: Foreign Currency Translation Unrealized Net Gain on Investments Fair Market Value of Cash Flow Hedges Postretirement Benefit Obligation Net Loss Accumulated Other Comprehensive Income (Loss) (Unaudited) (In thousands) Balance as of March 31, 2019 $ (56,612) $ (7,259) $ 107 $ (2,934) $ (66,698) Foreign currency translation 2,919 – – – 2,919 Unrealized net gain on investments – 104,471 – – 104,471 Change in fair value of cash flow hedges – – (1,173) – (1,173) Amounts reclassified into earnings on hedging activities – – (2) – (2) Other comprehensive income (loss) 2,919 104,471 (1,175) – 106,215 Balance as of December 31, 2019 $ (53,693) $ 97,212 $ (1,068) $ (2,934) $ 39,517

The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-URI http://asc.fasb.org/topic&trid=2134417

Name:	us-gaap_ComprehensiveIncomeNoteTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration