Fair Values of Financial and Nonfinancial Instruments (Tables)

9 Months Ended

Sep. 30, 2013

Fair Values of Financial and Nonfinancial Instruments

Fair value measurement methods and values for financial instruments measured on a recurring basis

					FAIR VALUE
(in thousands)	HIERARCHY	SEPTEMBER 30, 2013			DECEMBER 31, 2012
Marketable securities, available-for-sale
U.S. Treasury securities	Level 1	$	93,694		$	3,099
Obligations of U.S. government agencies	Level 1	20,226			133,110
Municipal debt securities	Level 2	37,029			22,183
Corporate debt securities	Level 2	164,855			163,393
Asset-backed securities	Level 2	24,685			27,314
Time deposits	Level 2	1,804			-
Short-term pooled investments	Level 1	25,228			36,526
Mortgage loans held-for-sale	Level 2	86,463			107,950
Mortgage interest rate lock commitments	Level 2	9,770			4,737
Forward-delivery contracts	Level 2	(6,878		)	(369		)