UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (43,741)	$ 72,899
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	106,853	77,164
Deferred income taxes	(37,628)	(7,875)
Write-off of deferred debt financing fees	0	660
Discount amortization on long-term debt	973	3,212
Loss on disposal of assets	23,856	25,594
Gain on sale of unconsolidated affiliates	0	(3,921)
Loss on impairment	27,713	7,167
Stock-based compensation	16,641	13,651
Equity in earnings from unconsolidated affiliates less than dividends received	2,227	4,196
Tax benefit related to stock-based compensation	(44)	(1,642)
Increase (decrease) in cash resulting from changes in:
Accounts receivable	31,858	(11,350)
Inventories	(5,555)	(15,578)
Prepaid expenses and other assets	(2,645)	(13,354)
Accounts payable	(2,527)	19,353
Accrued liabilities	(46,289)	4,547
Other liabilities and deferred credits	(16,008)	(12,313)
Net cash provided by operating activities	55,684	162,410
Cash flows from investing activities:
Capital expenditures	(343,365)	(499,285)
Proceeds from asset dispositions	19,152	404,361
Proceeds from sale of unconsolidated affiliates	0	4,185
Net cash used in investing activities	(324,213)	(90,739)
Cash flows from financing activities:
Proceeds from borrowings	910,421	347,860
Repayment of debt	(567,121)	(373,169)
Partial prepayment of put/call obligation	(42)	(46)
Acquisition of noncontrolling interest	(7,311)	(3,170)
Dividends paid to noncontrolling interest	(153)	0
Payment of contingent consideration	(8,000)	0
Repurchase of common stock	0	(80,831)
Common stock dividends paid	(35,627)	(33,935)
Issuance of common stock	0	2,217
Tax benefit related to stock-based compensation	44	1,642
Net cash provided by (used in) financing activities	292,211	(139,432)
Effect of exchange rate changes on cash and cash equivalents	4,080	(15,214)
Net increase (decrease) in cash and cash equivalents	27,762	(82,975)
Cash and cash equivalents at beginning of period	104,146	204,341
Cash and cash equivalents at end of period	131,908	121,366
Cash paid during the period for:
Interest	36,453	36,268
Income taxes	21,073	28,902
Supplemental disclosure of non-cash investing activities:
Deferred sale leaseback advance	18,285	69,680
Completion of deferred sale leaseback	(74,480)	(183,688)
Accrued proceeds on insurance claim	0	7,604
Aircraft purchased with short-term borrowings	$ 14,794	$ 0