Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net cash provided by operating activities	$ 315,980	$ 310,662	$ 101,674
Cash flows from investing activities:
Purchases of property and equipment	(30,282)	(31,651)	(2,605)
Proceeds from sale of property and equipment	46	8	6
Investments in unconsolidated entities	(7,022)	(2,274)	(980)
Intercompany	0	0	0
Net cash paid for acquisition	0	(61,495)	0
Net cash used in investing activities	(37,258)	(95,412)	(3,579)
Cash flows from financing activities:
Borrowings from debt	400,000	125,000	500,000
Repayment of debt	(531,895)	(193,105)	(413,726)
Debt issuance costs	(3,125)	0	(5,957)
Distributions to Weyerhaeuser	0	(2,194)	(1,333)
Proceeds from issuance of common stock under share-based awards	449	1,943	12,291
Minimum tax withholding paid on behalf of employees for share-based awards	(3,612)	(6,049)	(2,896)
Share repurchases	(89,224)	(146,063)	(112,217)
Intercompany	0	0	0
Net cash used in financing activities	(227,407)	(220,468)	(23,838)
Net increase (decrease) in cash and cash equivalents	51,315	(5,218)	74,257
Cash and cash equivalents - beginning of year	277,696	282,914	208,657
Cash and cash equivalents - end of year	329,011	277,696	282,914
Reporting Entity \| Issuer
Cash flows from operating activities:
Net cash provided by operating activities	88,832	156,976	73,208
Cash flows from investing activities:
Purchases of property and equipment	(9,469)	(8,038)	(1,424)
Proceeds from sale of property and equipment	0	0	0
Investments in unconsolidated entities	0	0	0
Intercompany	186,115	40,781	(14,163)
Net cash paid for acquisition	0	0
Net cash used in investing activities	176,646	32,743	(15,587)
Cash flows from financing activities:
Borrowings from debt	400,000	125,000	500,000
Repayment of debt	(531,895)	(193,105)	(413,726)
Debt issuance costs	(3,125)		(5,957)
Distributions to Weyerhaeuser		0	0
Proceeds from issuance of common stock under share-based awards	449	1,943	12,291
Minimum tax withholding paid on behalf of employees for share-based awards	(3,612)	(6,049)	(2,896)
Share repurchases	(89,224)	(146,063)	(112,217)
Intercompany	0	0	0
Net cash used in financing activities	(227,407)	(218,274)	(22,505)
Net increase (decrease) in cash and cash equivalents	38,071	(28,555)	35,116
Cash and cash equivalents - beginning of year	148,129	176,684	141,568
Cash and cash equivalents - end of year	186,200	148,129	176,684
Reporting Entity \| Guarantor Subsidiaries
Cash flows from operating activities:
Net cash provided by operating activities	227,148	153,686	28,466
Cash flows from investing activities:
Purchases of property and equipment	(20,813)	(23,613)	(1,181)
Proceeds from sale of property and equipment	46	8	6
Investments in unconsolidated entities	(7,022)	(2,274)	(980)
Intercompany	0	0	0
Net cash paid for acquisition	0	(61,495)
Net cash used in investing activities	(27,789)	(87,374)	(2,155)
Cash flows from financing activities:
Borrowings from debt	0	0	0
Repayment of debt	0	0	0
Debt issuance costs	0		0
Distributions to Weyerhaeuser		(2,194)	(1,333)
Proceeds from issuance of common stock under share-based awards	0	0	0
Minimum tax withholding paid on behalf of employees for share-based awards	0	0	0
Share repurchases	0	0	0
Intercompany	(186,115)	(40,781)	14,163
Net cash used in financing activities	(186,115)	(42,975)	12,830
Net increase (decrease) in cash and cash equivalents	13,244	23,337	39,141
Cash and cash equivalents - beginning of year	129,567	106,230	67,089
Cash and cash equivalents - end of year	142,811	129,567	106,230
Consolidating Adjustments
Cash flows from operating activities:
Net cash provided by operating activities	0	0	0
Cash flows from investing activities:
Purchases of property and equipment	0	0	0
Proceeds from sale of property and equipment	0	0	0
Investments in unconsolidated entities	0	0	0
Intercompany	(186,115)	(40,781)	14,163
Net cash paid for acquisition	0	0
Net cash used in investing activities	(186,115)	(40,781)	14,163
Cash flows from financing activities:
Borrowings from debt	0	0	0
Repayment of debt	0	0	0
Debt issuance costs	0		0
Distributions to Weyerhaeuser		0	0
Proceeds from issuance of common stock under share-based awards	0	0	0
Minimum tax withholding paid on behalf of employees for share-based awards	0	0	0
Share repurchases	0	0	0
Intercompany	186,115	40,781	(14,163)
Net cash used in financing activities	186,115	40,781	(14,163)
Net increase (decrease) in cash and cash equivalents	0	0	0
Cash and cash equivalents - beginning of year	0	0	0
Cash and cash equivalents - end of year	$ 0	$ 0	$ 0

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