Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net earnings (loss)	$ 123	$ (52,742)
Adjustments to reconcile net earnings (loss) to net cash provided by operating activities:
Unrealized foreign exchange losses (gains)	370	(105)
Deferred income tax benefit	(252)	(18,652)
Unrealized risk management (gains) losses	(6,486)	79,856
Depreciation and amortization	20,631	25,065
Deferred charges amortization	1,670	1,743
Loss on extinguishment of debt		599
Write-down of inventory		22,281
Changes in non-cash working capital	8,817	(28,802)
Net cash provided by operating activities	24,873	29,243
Investing Activities
Property, plant and equipment expenditures	(915)	(26,292)
Proceeds on sale of assets		2,200
Net cash used in investing activities	(915)	(24,092)
Financing Activities
Proceeds from revolver drawings	227,000	176,948
Revolver payments	(231,500)	(161,948)
Payment of deferred financing costs		(3,127)
Proceeds from obligations under capital lease		712
Repayments of obligations under capital lease	(625)
Distributions to Unitholders	(21,313)	(22,727)
Net cash used in financing activities	(26,438)	(10,142)
Effect of translation on foreign currency cash and cash equivalents	59	148
Net decrease in cash and cash equivalents	(2,421)	(4,843)
Cash and cash equivalents, beginning of period	10,610	13,342
Cash and cash equivalents, end of period	$ 8,189	$ 8,499