Summary of Significant Accounting Policies (Reconciliation of Cash, Cash Equivalents, and Restricted Cash) (Details) - USD ($) $ in Thousands		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Cash and cash equivalents		$ 151,551	$ 230,118	$ 343,809
Restricted cash included in other current and long-term assets	[1]	$ 174	$ 7,570	$ 1,782
Restricted Cash, Statement of Financial Position [Extensible Enumeration]		Other long-term assets	Other long-term assets	Other long-term assets
Total cash, cash equivalents, and restricted cash		$ 151,725	$ 237,688	$ 345,591	$ 296,772

[1] 1. Amounts included in restricted cash represent proceeds held by a qualified intermediary that were or are intended to be reinvested in timberlands. At December 31, 2024, 2023, and 2022, $0, $2.8 million and $0, respectively, was classified as Other current assets.