Thermon Group Holdings, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Goodwill and Other Intangible Assets Intangible Assets (Details)

Goodwill and Other Intangible Assets Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Accumulated Amortization	$ (56,866)	$ (50,486)
Intangible Assets, Gross (Excluding Goodwill)	163,640	169,403
Intangible Assets, Net (Excluding Goodwill)	106,774	118,917
Developed Technology Rights
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	10,354	10,781
Finite-Lived Intangible Assets, Accumulated Amortization	(2,466)	(2,167)
Finite-Lived Intangible Assets, Net	7,888	8,614
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	96,444	99,578
Finite-Lived Intangible Assets, Accumulated Amortization	(43,588)	(37,383)
Finite-Lived Intangible Assets, Net	52,856	62,195
Order or Production Backlog
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	9,559	9,874
Finite-Lived Intangible Assets, Accumulated Amortization	(9,559)	(9,874)
Finite-Lived Intangible Assets, Net	0	0
Other Intangible Assets
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,630	1,630
Finite-Lived Intangible Assets, Accumulated Amortization	(1,253)	(1,062)
Finite-Lived Intangible Assets, Net	377	568
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	45,181	47,042
Certification Marks
Acquired Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 472	$ 498