Comprehensive Income (loss) (Table Text Block)

6 Months Ended

Sep. 30, 2017

Table Text Block Supplement [Abstract]

Summary of accumulated other comprehensive income (loss) components, net of tax

		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 at March 31, 2017	$	(69,505)	$	23,099	$	(3,059)	$	(1,771)	$	(51,236)
Foreign currency translation		21,034		–		–		–		21,034
Unrealized net gain on investments		–		16,968		–		–		16,968
Change in fair value of cash flow hedges		–		–		4,318		–		4,318
Amounts reclassified from AOCI		–		–		(2,618)		–		(2,618)
Other comprehensive income (loss)		21,034		16,968		1,700		–		39,702
Balance at September 30, 2017	$	(48,471)	$	40,067	$	(1,359)	$	(1,771)	$	(11,534)