Merger and Recapitalization - Schedule of Pre-Merger And Post-Merger Capitalization Structure (Detail) - shares	Mar. 31, 2018	Dec. 31, 2017	Mar. 29, 2017	Mar. 28, 2017
Schedule of Capitalization [Line Items]
Common Units Issued	0	19,438,552
Series A Common Units [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			12,219,299	5,123,917
Series A Common Units [Member] | Solid GT, LLC [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				450,000
Series A Common Units [Member] | Founders Of Company [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				4,560,000
Series A Common Units [Member] | Other Management Employees [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				563,917
Series B Common Units [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			3,258,480
Series B Common Units [Member] | Solid GT, LLC [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				50,000
Series D Common Units One [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			402,963
Series C- Common Units [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			1,635,916
Series C- Common Units [Member] | Solid GT, LLC [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				33,107
Series D Common Units Two [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			1,083,205
Series A, B, C and D Common Units [Member]
Schedule of Capitalization [Line Items]
Common Units Issued			18,599,863
Series D Common Units [Member] | Solid GT, LLC [Member]
Schedule of Capitalization [Line Items]
Common Units Issued				134,920
Junior Preferred Units [Member]
Schedule of Capitalization [Line Items]
Preferred Units Issued	0	4,414,356	4,414,356
Redeemable Preferred Units [Member]
Schedule of Capitalization [Line Items]
Preferred Units Issued				17,100,000