FAIR VALUE DISCLOSURES (Details)	12 Months Ended							12 Months Ended		12 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Mar. 31, 2012 USD ($)	Mar. 31, 2014 Cougar [Member]	Mar. 31, 2013 Cougar [Member]	Mar. 31, 2014 Eastern Airways International Limited USD ($)	Mar. 31, 2014 Eastern Airways International Limited GBP (£)	Mar. 31, 2014 Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2013 Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2014 Assets Held For Sale [Member] USD ($)	Mar. 31, 2013 Assets Held For Sale [Member] USD ($)	Mar. 31, 2012 Assets Held For Sale [Member] USD ($)	Mar. 31, 2012 Medium Aircraft [Member] USD ($)	Mar. 31, 2013 AS332L Aircraft [Member] USD ($)	Mar. 31, 2012 AS332L Aircraft [Member] Assets Held For Sale [Member] USD ($)	Mar. 31, 2014 Senior Notes Due 2022 [Member] USD ($)	Mar. 31, 2013 Senior Notes Due 2022 [Member] USD ($)	Mar. 31, 2014 Term Loan [Member] USD ($)	Mar. 31, 2013 Term Loan [Member] USD ($)	Mar. 31, 2014 Convertible Notes Payable [Member] USD ($)	Mar. 31, 2013 Convertible Notes Payable [Member] USD ($)	Mar. 31, 2014 Senior Notes Due 2017 [Member]	Mar. 31, 2013 Senior Notes Due 2017 [Member]	Mar. 31, 2014 Revolving Credit Facility [Member] USD ($)	Mar. 31, 2013 Revolving Credit Facility [Member] USD ($)	Mar. 31, 2014 Eastern Airways International Limited USD ($)	Mar. 31, 2013 Eastern Airways International Limited USD ($)	Mar. 31, 2014 Other Debt [Member] USD ($)	Mar. 31, 2013 Other Debt [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 1 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 1 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 1 [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 1 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 1 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 2 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 2 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 2 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 2 [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 2 [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 2 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 2 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 3 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 3 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 3 [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Fair Value, Inputs, Level 3 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Fair Value, Inputs, Level 3 [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Estimate Of Fair Value, Fair Value Disclosure [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2013 Estimate Of Fair Value, Fair Value Disclosure [Member] Fair Value Measurements Nonrecurring [Member] USD ($)	Mar. 31, 2014 Estimate Of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Estimate Of Fair Value, Fair Value Disclosure [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Estimate Of Fair Value, Fair Value Disclosure [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Estimate Of Fair Value, Fair Value Disclosure [Member] FV Other Assets [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2014 Estimate Of Fair Value, Fair Value Disclosure [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)	Mar. 31, 2013 Estimate Of Fair Value, Fair Value Disclosure [Member] FV Other Liabilities And Deferred Credits [Member] Fair Value, Measurements, Recurring [Member] USD ($)
Fair Value [Line Items]
Inventories	$ 137,463,000	$ 153,969,000						$ (12,669,000)																						$ 0							$ 50,505,000								$ 0								$ 50,505,000
Aircraft and equipment									8,722,000																						0							14,385,000								0								14,385,000
Assets held for sale	29,276,000	8,290,000							(4,362,000)																					0	0						16,050,000	1,600,000							0	0							16,050,000	1,600,000
Total assets									4,360,000																					0	0						66,555,000	15,985,000							0	0							66,555,000	15,985,000
Rabbi Trust investments	6,599,000																																	4,837,000							0	0							0	0							0	4,837,000
Total assets																																6,599,000	4,837,000						0	0							0	0							0	4,837,000
Contingent consideration	31,322,000	35,625,000																																	0	0							0	0							31,322,000	35,625,000							31,322,000	35,625,000
Total liabilities																																0	0						0	0							31,322,000	35,625,000							31,322,000	35,625,000
Impairment of Long-Lived Assets to be Disposed of	6,800,000	4,400,000	26,300,000					(6,814,000)		6,814,000	4,362,000	26,278,000	2,700,000		23,300,000
Number of impairment of long lived assets to be disposed of	11	10
Number of aircraft reclassed held for sale to property and eqiupment														4
Gain from aircraft reclassed from held for sale to property and eqiupment														8,700,000
FV Gain (Loss) Total								(19,483,000)
Debt Instrument, Interest Rate, Stated Percentage																6.25%	6.25%			3.00%		7.50%	7.50%
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair value starting balance	35,625,000																																		0	0							0	0							31,322,000	35,625,000							31,322,000	35,625,000
Contingent liability for investment in unconsolidated affiliate	0	34,245,000	0			10,000,000	6,000,000
Change in fair value of contingent consideration	1,697,000
Earn out payment	(6,000,000)
Fair value ending balance	31,322,000	35,625,000																																	0	0							0	0							31,322,000	35,625,000							31,322,000	35,625,000
Carrying value of total debt	841,302,000	787,269,000														450,000,000	450,000,000	226,604,000	230,625,000	109,904,000	106,196,000			24,000,000	0	29,911,000	0	883,000	448,000
Fair value of total debt	$ 900,780,000	$ 847,767,000														$ 477,000,000	$ 484,875,000	$ 226,604,000	$ 230,625,000	$ 142,382,000	$ 131,819,000			$ 24,000,000	$ 0	$ 29,911,000	$ 0	$ 883,000	$ 448,000
Fair Value Inputs, Discount Rate				4.00%	4.00%