FAIR VALUE DISCLOSURES (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Fair Value [Line Items]
Goodwill	$ 29,990	$ 75,628	$ 56,680
Inventories	142,503	147,169	11,100
Assets held for sale	43,783	57,827
Intangible Assets	7,479
Impairment of inventories	(5,439)	(7,167)	(12,669)
Impairment charges on assets held for sale	(29,571)	(36,057)
Goodwill, impairment loss	(41,579)	0
Intangible Assets, Gross (Excluding Goodwill)	27,858	28,306	26,628
Impairments, intangible assets	(8,086)
Total loss on sale of assets and asset impairment charges	(84,675)	(43,224)
Other accrued liabilities	48,392	48,667
Other liabilities and deferred credits	33,273	39,782
Carrying value of total debt	1,140,889	864,422
Fair value of total debt	1,016,413	845,524
Assets held for sale
Fair Value [Line Items]
Impairment charges on assets held for sale	(29,571)	(36,057)	$ (6,814)
Senior Notes \| Senior Notes Due 2022
Fair Value [Line Items]
Carrying value of total debt	401,535	401,535
Fair value of total debt	277,059	381,458
Term Loan
Fair Value [Line Items]
Carrying value of total debt	335,665	222,179
Fair value of total debt	335,665	222,179
Term Loan \| Airnorth Debt
Fair Value [Line Items]
Carrying value of total debt	19,200
Revolving Credit Facility
Fair Value [Line Items]
Carrying value of total debt	144,000	83,800
Fair value of total debt	144,000	83,800
Other Debt
Fair Value [Line Items]
Carrying value of total debt	24,394	0
Fair value of total debt	24,394	0
Other Debt \| Airnorth Debt
Fair Value [Line Items]
Carrying value of total debt	19,652	23,119
Fair value of total debt	19,652	23,119
Other Debt \| Eastern Airways Debt
Fair Value [Line Items]
Carrying value of total debt	15,643	19,680
Fair value of total debt	15,643	19,680
Term Loan Credit Facility
Fair Value [Line Items]
Carrying value of total debt	200,000	0
Fair value of total debt	200,000	0
Convertible Notes Payable
Fair Value [Line Items]
Carrying value of total debt	0	114,109
Fair value of total debt	0	115,288
Fair value measurements nonrecurring
Fair Value [Line Items]
Goodwill	29,990
Inventories	6,261	3,139
Assets held for sale	43,783	54,310
Total assets	80,034	57,449
Intangible Assets, Gross (Excluding Goodwill)	0
Fair value, measurements, recurring
Fair Value [Line Items]
Rabbi Trust investments	2,990	2,379
Total assets	2,990	2,379
Other accrued liabilities	29,522	33,938
Other liabilities and deferred credits	3,069	4,967
Total liabilities	32,591	38,905
Fair value, inputs, Level 1 \| Fair value measurements nonrecurring
Fair Value [Line Items]
Goodwill	0
Inventories	0	0
Assets held for sale	0	0
Total assets	0	0
Intangible Assets, Gross (Excluding Goodwill)	0
Fair value, inputs, Level 1 \| Fair value, measurements, recurring
Fair Value [Line Items]
Rabbi Trust investments	2,990	2,379
Total assets	2,990	2,379
Other accrued liabilities	0	0
Other liabilities and deferred credits	0	0
Total liabilities	0	0
Fair value, inputs, Level 2 \| Fair value measurements nonrecurring
Fair Value [Line Items]
Goodwill	0
Inventories	6,261	3,139
Assets held for sale	43,783	54,310
Total assets	50,044	57,449
Intangible Assets, Gross (Excluding Goodwill)	0
Fair value, inputs, Level 2 \| Fair value, measurements, recurring
Fair Value [Line Items]
Rabbi Trust investments	0	0
Total assets	0	0
Other accrued liabilities	0	0
Other liabilities and deferred credits	0	0
Total liabilities	0	0
Fair value, inputs, Level 3
Fair Value [Line Items]
Fair value starting balance	38,905
Change in fair value of contingent consideration	3,139
Fair value ending balance	32,591	38,905
Fair value, inputs, Level 3 \| Fair value measurements nonrecurring
Fair Value [Line Items]
Goodwill	29,990
Inventories	0	0
Assets held for sale	0	0
Total assets	29,990	0
Intangible Assets, Gross (Excluding Goodwill)	0
Fair value, inputs, Level 3 \| Fair value, measurements, recurring
Fair Value [Line Items]
Rabbi Trust investments	0	0
Total assets	0	0
Other accrued liabilities	29,522	33,938
Other liabilities and deferred credits	3,069	4,967
Total liabilities	32,591	38,905
Cougar
Fair Value [Line Items]
Fair value starting balance	32,500
Fair value ending balance	$ 26,000	$ 32,500
Fair Value Inputs, Discount Rate	4.00%	4.00%
Cougar \| Fair value, inputs, Level 3
Fair Value [Line Items]
Earn out payment	$ (8,000)
Airnorth
Fair Value [Line Items]
Fair value starting balance	6,400
Fair value ending balance	$ 6,600	$ 6,400
Fair Value Inputs, Discount Rate	2.00%	2.00%
Airnorth \| Fair value, inputs, Level 3
Fair Value [Line Items]
Earn out payment	$ (1,453)

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