Goodwill, Other Intangible Assets And Long-Lived Assets - Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 63,522	$ 67,404	$ 81,021
Accumulated Amortization	26,905	27,119	23,227
Tradenames and trademarks
Acquired Indefinite-lived Intangible Assets [Line Items]
Gross carrying amount	15,054	15,054	24,353
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	44,037	44,037	48,657
Accumulated Amortization	24,615	23,942	20,976
Favorable lease contracts
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	3,882	3,882
Accumulated Amortization	0	1,016	478
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,435	2,435	2,435
Accumulated Amortization	717	645	425
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,466	1,466	1,164
Accumulated Amortization	1,092	1,059	971
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	530	530	530
Accumulated Amortization	$ 481	$ 457	$ 377