Investments in Debt and Equity Securities (Tables)

9 Months Ended

Sep. 30, 2014

Investments in Debt and Equity Securities

Summary of activities for available-for-sale securities

	Gross Unrealized
		(dollars in thousands)
September 30, 2014		Cost		Gains		Losses			Fair Value
Equity	$	196,523	$	64,560	$	(2,185	)	$	258,898
Debt		166,710		9,159		(8,417	)		167,452
Other		13,173		—		(2	)		13,171
Total	$	376,406	$	73,719	$	(10,604	)	$	439,521

	Gross Unrealized
		(dollars in thousands)
December 31, 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