Segment Information (Summary of Revenues by Major Product) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation Of Revenue [Line Items]
Revenues		$ 274,985	$ 320,671	$ 543,245	$ 548,798
Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues		302,579	348,113	597,266	600,768
Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues	[1]	(27,594)	(27,442)	(54,021)	(51,970)
Timberlands [Member]
Disaggregation Of Revenue [Line Items]
Revenues		74,070	71,360	150,094	139,782
Timberlands [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues		101,664	98,802	204,115	191,752
Timberlands [Member] | Operating Segments [Member] | Northern Region [Member]
Disaggregation Of Revenue [Line Items]
Revenues		47,512	41,154	92,577	75,336
Timberlands [Member] | Operating Segments [Member] | Northern Region [Member] | Sawlogs [Member]
Disaggregation Of Revenue [Line Items]
Revenues		46,003	40,564	89,867	74,370
Timberlands [Member] | Operating Segments [Member] | Northern Region [Member] | Pulpwood [Member]
Disaggregation Of Revenue [Line Items]
Revenues		1,122	215	1,851	280
Timberlands [Member] | Operating Segments [Member] | Northern Region [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues		387	375	859	686
Timberlands [Member] | Operating Segments [Member] | Southern Region [Member]
Disaggregation Of Revenue [Line Items]
Revenues		54,152	57,648	111,538	116,416
Timberlands [Member] | Operating Segments [Member] | Southern Region [Member] | Sawlogs [Member]
Disaggregation Of Revenue [Line Items]
Revenues		30,958	34,309	60,587	65,525
Timberlands [Member] | Operating Segments [Member] | Southern Region [Member] | Pulpwood [Member]
Disaggregation Of Revenue [Line Items]
Revenues		15,163	15,315	32,381	30,963
Timberlands [Member] | Operating Segments [Member] | Southern Region [Member] | Stumpage [Member]
Disaggregation Of Revenue [Line Items]
Revenues		3,692	4,088	8,811	11,720
Timberlands [Member] | Operating Segments [Member] | Southern Region [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues		4,339	3,936	9,759	8,208
Timberlands [Member] | Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues		(27,594)	(27,442)	(54,021)	(51,970)
Wood Products [Member]
Disaggregation Of Revenue [Line Items]
Revenues		171,819	153,579	336,464	302,177
Wood Products [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues		171,819	153,579	336,464	302,177
Wood Products [Member] | Operating Segments [Member] | Lumber [Member]
Disaggregation Of Revenue [Line Items]
Revenues		136,372	120,888	267,820	237,611
Wood Products [Member] | Operating Segments [Member] | Residuals and Panels [Member]
Disaggregation Of Revenue [Line Items]
Revenues		35,447	32,691	68,644	64,566
Wood Products [Member] | Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues		0	0	0	0
Real Estate Segment [Member]
Disaggregation Of Revenue [Line Items]
Revenues		29,096	95,732	56,687	106,839
Real Estate Segment [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues		29,096	95,732	56,687	106,839
Real Estate Segment [Member] | Operating Segments [Member] | Rural Real Estate [Member]
Disaggregation Of Revenue [Line Items]
Revenues		23,177	84,853	46,438	90,379
Real Estate Segment [Member] | Operating Segments [Member] | Development Real Estate [Member]
Disaggregation Of Revenue [Line Items]
Revenues		1,882	7,488	3,126	10,362
Real Estate Segment [Member] | Operating Segments [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues		4,037	3,391	7,123	6,098
Real Estate Segment [Member] | Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues		$ 0	$ 0	$ 0	$ 0

[1] Intersegment revenues represent logs sold by our Timberlands segment to our Wood Products segment.