Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 45,007	$ 45,007	$ 38,037
Accumulated Amortization	13,875	11,959	11,443
Tradenames and Trademarks [Member]
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross Carrying Amount	12,953	12,953	12,953
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	29,957	29,957	23,357
Accumulated Amortization	12,758	11,031	10,566
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	403	403	403
Accumulated Amortization	325	303	295
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,164	1,164	1,164
Accumulated Amortization	680	592	563
Non-compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	530	530	160
Accumulated Amortization	$ 112	$ 33	$ 19