Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 3,668	$ 3,785
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation, amortization and accretion	24,773	18,439
Change in fair value of contingent consideration	(1,987)	(148)
Provision for doubtful accounts, net	1,069	68
Deferred tax provision	1,152	(449)
Stock compensation	6,933	7,417
Other	2,695	1,119
Changes in operating assets and liabilities:
Trade accounts receivable	(158,662)	(101,730)
Inventories	(269,488)	(186,300)
Prepaid expenses and other current assets	(11,235)	(10,572)
Income tax receivable	(4,305)	(3,997)
Other assets	(607)	(4,358)
Trade accounts payable	138,252	86,816
Contingent consideration	(177)	0
Accrued expenses	7,401	16,635
Income taxes payable	787	(570)
Long-term liabilities	361	2,614
Net cash used in operating activities	(259,370)	(171,231)
Cash flows from investing activities:
Purchases of property and equipment	(38,490)	(43,656)
Purchases of intangibles and other assets, net	(9,489)	(701)
Net cash used in investing activities	(47,979)	(44,357)
Cash flows from financing activities:
Cash paid for shares withheld for taxes	(643)	(3,041)
Excess tax benefits from stock compensation	261	763
Contingent consideration and deferred payments paid	(115)	0
Proceeds from issuance of short-term borrowing	150,784	276,458
Cash paid for repayment of short-term borrowings	(3,458)	(41,000)
Proceeds from mortgage loan	33,931	0
Mortgage loan origination costs	(338)	0
Repayment of mortgage principal	(37)	0
Net cash provided by financing activities	180,385	233,180
Effect of exchange rates on cash	(3,473)	1,924
Net change in cash and cash equivalents	(130,437)	19,516
Cash and cash equivalents at beginning of period	245,088	64,591
Cash and cash equivalents at end of period	114,651	84,107
Cash paid during the period for:
Income taxes	5,095	2,340
Interest	641	1,261
Non-cash investing and financing activities:
Accruals for purchases of property and equipment	6,905	6,381
Accruals for asset retirement obligations	286	26
Accruals for shares withheld for taxes	$ 0	$ 1,658