Marketable Investment Securities (Tables)

6 Months Ended

Dec. 31, 2013

Schedule of Fair Value for Available-for-Sale Securities by Major Security Type and Class of Security

The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at December 31, 2013 and June 30, 2013 were as follows:

(In thousands)	Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
At December 31, 2013:
Cash and cash equivalents:
Cash	$	53,924	$	—	$	—		$	53,924
Cash equivalents		17,675		—		—			17,675
Total cash and cash equivalents		71,599		—		—			71,599
Available-for-sale securities:
Corporate bonds and notes		84,259		60		(1	)		84,318
Municipal bonds		268,341		300		(99	)		268,542
Federal agency issues		64,293		30		—			64,323
Total available-for-sale securities		416,893		390		(100	)		417,183
Total cash, cash equivalents and available-for-sale securities	$	488,492	$	390	$	(100	)	$	488,782

(In thousands)	Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
At June 30, 2013:
Cash and cash equivalents:
Cash	$	40,412	$	—	$	—		$	40,412
Cash equivalents		63,653		8		—			63,661
Total cash and cash equivalents		104,065		8		—			104,073
Available-for-sale securities:
Corporate bonds and notes		71,626		13		(15	)		71,624
Municipal bonds		251,513		109		(537	)		251,085
Federal agency issues		104,293		24		(35	)		104,282
Total available-for-sale securities		427,432		146		(587	)		426,991
Total cash, cash equivalents and available-for-sale securities	$	531,497	$	154	$	(587	)	$	531,064

Schedule of Maturities of Debt Securities Classified as Cash Equivalents and Available-For-Sale

Cash, cash equivalents, and maturities of debt securities classified as available-for-sale securities are as follows at December 31, 2013:

(In thousands)	Amortized cost		Estimated fair value
Cash	$	53,924	$	53,924
Cash equivalents		17,675		17,675
Available-for-sale:
Due within one year		281,882		281,996
Due after one year through five years		135,011		135,187
Due after five years		—		—
	$	488,492	$	488,782