Construction Joint Ventures - Schedule of Unconsolidated Construction Joint Ventures Assets and Liabilities (Details) - USD ($) $ in Thousands		Dec. 31, 2018	Dec. 31, 2017
Construction Joint Venture
Unconsolidated Construction Joint Venture Assets, Noncurrent Assets		$ 204,090	$ 219,825
Equity in Construction Joint Ventures	[1]	271,162	231,887
Other Partners Interest in Partnerships [Member]
Construction Joint Venture
Unconsolidated Construction Joint Venture Assets		822,215	869,782
Unconsolidated Construction Joint Venture Liabilities	[2]	369,782	462,159
Reporting Entitys Interest in Joint Venture [Member]
Construction Joint Venture
Unconsolidated Construction Joint Venture Assets	[3],[4]	426,416	452,560
Unconsolidated Construction Joint Venture Liabilities		155,254	220,673
Cash and Cash Equivalents [Member]
Construction Joint Venture
Unconsolidated Construction Joint Venture Assets		229,562	289,940
Other Assets, Current and Longterm [Member]
Construction Joint Venture
Unconsolidated Construction Joint Venture Assets	[3]	814,979	812,577
Accounts Payable [Member]
Construction Joint Venture
Unconsolidated Construction Joint Venture Liabilities		$ 525,036	$ 682,832

[1] Included in this balance and in accrued expenses and other current liabilities on the consolidated balance sheets were amounts related to deficits in construction joint ventures that were $11.5 million and $15.9 million as of December 31, 2018 and 2017, respectively.

[2] Partners’ interest and adjustments includes amounts to reconcile total net assets as reported by our partners to Granite’s interest adjusted to reflect our accounting policies and estimates primarily related to contract forecast differences.

[3] Included in this balance and in accrued and other current liabilities on our consolidated balance sheets were amounts related to performance guarantees that were $88.2 million and $88.6 million as of December 31, 2018 and 2017, respectively (see Note 14).

[4] Included in this balance as of December 31, 2018 and 2017 was $78.1 million and $74.3 million, respectively, related to Granite’s share of estimated cost recovery of customer affirmative claims. In addition, this balance included $15.6 million and $11.8 million related to Granite’s share of estimated recovery of back charge claims as of December 31, 2018 and 2017, respectively.