Note 6 - Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Fair Value, Assets Measured on Recurring Basis [Table Text Block]

		Fair Value
Financial Instrument	Hierarchy	March 31, 2019		December 31, 2018
		(Dollars in thousands)
Cash and cash equivalents
Debt securities (available-for-sale)	Level 1	$	34,860	$	34,866
Marketable securities
Equity securities	Level 1	$	45,767	$	40,879
Mortgage loans held-for-sale, net	Level 2	$	110,810	$	149,211

Available-for-sale Securities [Table Text Block]

	March 31, 2019
	Amortized Cost Basis		OTTI		Net Amortized Cost		Fair Value
	(Dollars in thousands)
Financial Services
Cash and cash equivalents
Debt securities	$	34,860	$	-	$	34,860	$	34,860

	December 31, 2018
	Amortized Cost Basis		OTTI		Net Amortized Cost		Fair Value
Financial Services
Cash and cash equivalents
Debt securities	$	34,866	$	-	$	34,866	$	34,866

Gain (Loss) on Securities [Table Text Block]

	Three Months Ended
	March 31,
	2019			2018
Net gain (loss) recognized during the period on equity securities	$	4,840		$	(1,153	)
Less: Net gain recognized during the period on equity securities sold during the period		(237	)		(96	)
Unrealized gain (loss) recognized during the reporting period on equity securities still held at the reporting date	$	4,603		$	(1,057	)

Fair Value of Senior Notes [Table Text Block]

	March 31, 2019				December 31, 2018
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(Dollars in thousands)
$250 Million 5⅝% Senior Notes due February 2020, net	$	249,109	$	254,304	$	248,850	$	253,413
$250 Million 5½% Senior Notes due January 2024, net		248,841		258,479		248,789		242,983
$500 Million 6% Senior Notes due January 2043, net		490,372		434,117		490,328		386,552
Total	$	988,322	$	946,900	$	987,967	$	882,948