Goodwill and Intangibles - Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 38,037	$ 36,446	$ 36,515
Accumulated Amortization	11,443	10,137	9,752
Tradenames and Trademarks [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	12,953	12,793	12,793
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	23,357	22,057	22,057
Accumulated Amortization	10,566	9,359	8,984
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	403	403	403
Accumulated Amortization	295	273	265
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,164	1,193	1,262
Accumulated Amortization	563	505	503
Non-compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	160	0	0
Accumulated Amortization	$ 19	$ 0	$ 0

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

+ Details

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- Definition

Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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