Supplemental Financial Information (Tables)

12 Months Ended

Mar. 31, 2016

Supplemental Cash Flow Information [Abstract]

Schedule of Valuation and Qualifying Accounts Disclosure Deferred Tax Assets

A summary of additions and deductions related to the valuation allowance for deferred tax asset accounts for the years ended March 31, 2016, 2015 and 2014 follows (amounts in thousands):

	Balance at Beginning of Year		Additions Charged to Costs and Expenses		Additions Charged to Other Accounts		Deductions			Balance at End of Year
Valuation allowance for deferred tax assets:
Fiscal Year 2016	$	116,482	$	5,535	$	47,834	$	(8,017	)	$	161,834
Fiscal Year 2015	93,811		—		36,957		(14,286		)	116,482
Fiscal Year 2014	88,637		—		5,174		—			93,811

Schedule of Valuation and Qualifying Accounts Disclosure Allowance for Doubtful Accounts

A summary of additions and deductions related to the allowance for doubtful accounts for the years ended March 31, 2016, 2015 and 2014 follows (amounts in thousands):

	Balance at Beginning of Year		Additions Charged to Costs and Expenses		Deductions (1)			Balance at End of Year
Allowance for doubtful accounts:
Fiscal Year 2016	$	2,621	$	59	$	(140	)	$	2,540
Fiscal Year 2015	2,918		104		(401		)	2,621
Fiscal Year 2014	2,764		245		(91		)	2,918

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

The following tables present the changes in the components of accumulated other comprehensive income (AOCI) for the years ended March 31, 2016 and March 31, 2015:

Year ended March 31, 2016	Unrealized Holding Gains (Losses) Available-for-sale Securities			Minimum Pension Liability		Foreign Currency			Total
Balance at March 31, 2015	$	14,537		$	13	$	(3,474	)	$	11,076
Other comprehensive (loss) income before reclassifications	(3,241		)	31		—			(3,210		)
Amounts reclassified from accumulated other comprehensive (loss) income	(10,948		)	—		—			(10,948		)
Net other comprehensive (loss) income	(14,189		)	31		—			(14,158		)
Purchase of shares from noncontrolling interest	—			—		(275		)	(275		)
Balance at March 31, 2016	$	348		$	44	$	(3,749	)	$	(3,357	)

Year ended March 31, 2015	Unrealized Holding Gains (Losses) Available-for-sale Securities			Minimum Pension Liability			Foreign Currency			Total
Balance at March 31, 2014	$	(528	)	$	140		$	1,439		$	1,051
Other comprehensive income (loss) before reclassifications	33,759			(127		)	(4,322		)	29,310
Amounts reclassified from accumulated other comprehensive income (loss)	(18,694		)	—			—			(18,694		)
Net other comprehensive income (loss)	15,065			(127		)	(4,322		)	10,616
Purchase of shares from noncontrolling interest	—			—			(591		)	(591		)
Balance at March 31, 2015	$	14,537		$	13		$	(3,474	)	$	11,076

Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]

The table below details where reclassifications of realized transactions out of AOCI are recorded on the consolidated statements of income.

	Year ended March 31,
Description of AOCI Component	2016		2015			2014			Related Statement of Income Line
Unrealized gains on available-for-sale securities	$	10,948	$	18,706		$	2,371		Other income
Taxes	—		(12		)	(776		)	Provision for income taxes
Reclassification of realized transactions, net of taxes	$	10,948	$	18,694		$	1,595		Net Income