XML 7 R3.htm IDEA: XBRL DOCUMENT v3.25.2

Payments, by Project - 12 months ended Dec. 31, 2024 - USD ($) $ in Thousands		Taxes	Royalties		Total Payments
Total		$ 18,500	$ 535	[1]	$ 19,035
Granite Canada [Member]
Total	[1]		$ 535
[1] Total payments are reported in United States (“U.S.”) dollars. Payments that were made using Canadian dollars have been converted to U.S. dollars based on the exchange rate as of the Company’s fiscal year end.

X

- Details

Name:	rxp_ProjectAxis=gva_GraniteCanadaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: