Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013
CURRENT ASSETS:
Cash and cash equivalents	$ 4,603	$ 11,561
Accounts receivable - trade, net of allowance for doubtful accounts of $1,743 and $1,760, respectively	545,317	562,889
Accounts receivable - affiliates	14,479	22,883
Inventories	208,329	126,895
Prepaid expenses and other current assets	39,805	37,891
Total current assets	812,533	762,119
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation of $62,910 and $50,127 respectively	536,451	516,937
GOODWILL	563,186	563,146
INTANGIBLE ASSETS, net of accumulated amortization of $55,453 and $44,155, respectively	434,861	442,603
OTHER NONCURRENT ASSETS	6,270	6,542
Total assets	2,353,301	2,291,347
CURRENT LIABILITIES:
Trade accounts payable	571,286	535,687
Accrued expenses and other payables	96,458	85,703
Advance payments received from customers	35,252	22,372
Accounts payable - affiliates	10,504	6,900
Current maturities of long-term debt	8,720	8,626
Total current liabilities	722,220	659,288
LONG-TERM DEBT, net of current maturities	781,816	740,436
OTHER NONCURRENT LIABILITIES	3,539	2,205
COMMITMENTS AND CONTINGENCIES
PARTNERS' EQUITY, per accompanying statement:
General Partner - 0.1% interest; 53,676 notional units outstanding at June 30, 2013 and March 31, 2013	(49,999)	(50,497)
Accumulated other comprehensive income (loss) -
Foreign currency translation	(1)	24
Noncontrolling interests	6,500	5,740
Total partners' equity	845,726	889,418
Total liabilities and partners' equity	2,353,301	2,291,347
Common units
Limited Partners - 99.9% interest -
Limited Partners - 99.9% interest -	881,611	920,998
Subordinated units
Limited Partners - 99.9% interest -
Limited Partners - 99.9% interest -	$ 7,615	$ 13,153