Investments: (Tables)

12 Months Ended

Dec. 31, 2013

Investments:

Summary of activities for available-for-sale securities

		(dollars in thousands)
	Gross Unrealized
2013		Cost		Gains		Losses			Fair Value
Equity	$	182,755	$	68,424	$	(1,053	)	$	250,126
Debt		164,941		7,319		(9,070	)		163,190
Other		12,101		2		–			12,103
Total	$	359,797	$	75,745	$	(10,123	)	$	425,419
		(dollars in thousands)
		Gross Unrealized
2012		Cost		Gains		Losses			Fair Value
Equity	$	153,846	$	45,071	$	(3,675	)	$	195,242
Debt		163,127		10,286		(4,501	)		168,912
Other		13,654		–		–			13,654
Total	$	330,627	$	55,357	$	(8,176	)	$	377,808

Schedule of contractual maturities of debt securities available-for-sale

		(dollars in thousands)
		2013				2012
		Cost		Fair Value		Cost		Fair Value
Due within one year	$	1,107	$	1,095	$	2,265	$	2,191
Due after one year through five years		46,950		46,982		43,050		43,533
Due after five years through ten years		62,860		61,612		68,893		71,217
Due after ten years		54,024		53,501		48,919		51,971
Total	$	164,941	$	163,190	$	163,127	$	168,912

Summary of realized gains and losses and proceeds from sales of securities

		(dollars in thousands)
		For the years ended December 31,
		2013			2012			2011
Gross realized gains	$	46,647		$	28,959		$	31,130
Gross realized losses		(21,685	)		(18,175	)		(16,215	)
Proceeds from sales		605,364			666,481			1,064,377

Schedule of investments in associated companies

		(dollars in thousands)
		2013		2012
National Rural Utilities CooperativeFinance Corporation (CFC)	$	24,019	$	24,005
CoBank, ACB		2,517		2,931
CT Parts, LLC		8,853		7,128
Georgia Transmission Corporation		22,542		20,867
Georgia System Operations Corporation		7,000		4,375
Other		1,506		1,464
Total	$	66,437	$	60,770