Consolidated Statements of Cash Flows (USD $) In Thousands	12 Months Ended
Mar. 31, 2011	Mar. 31, 2010	Mar. 31, 2009
Cash flows from operating activities
Net earnings	$ 113,426	$ 62,304	$ 81,930
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	44,393	44,851	47,233
Write-off of deferred financing fees	2,308		3,963
Bargain purchase gain		(2,919)
Gain on sales of facilities			(11,308)
Provision for doubtful accounts	1,513	2,712	4,873
Deferred income taxes	(3,064)	6,975	8,828
Non-cash interest expense	7,776	7,163	5,994
Stock-based compensation	9,056	6,964	5,021
(Gain)/loss on disposal and impairment of fixed assets		(912)	6,219
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(61,892)	(7,303)	85,915
Inventory	(67,250)	(23,445)	90,930
Prepaid expenses and other current assets	(15,658)	(1,075)	(1,509)
Other assets	(2,552)	(1,218)	142
Accounts payable	42,422	59,116	(109,712)
Accrued expenses	(3,822)	(5,816)	4,895
Other liabilities	9,803	(10,795)	(3,977)
Net cash provided by operating activities	76,459	136,602	219,437
Cash flows from investing activities
Capital expenditures	(59,940)	(45,111)	(57,143)
Purchase of businesses, net of cash acquired	(32,200)	(33,242)
Proceeds from disposal of property, plant, and equipment	479	1,109	10,333
Net cash used in investing activities	(91,661)	(77,244)	(46,810)
Cash flows from financing activities
Net increase (decrease) in short-term debt	3,084	(7,436)	(34,195)
Proceeds from the issuance of long-term debt	106,112		397,500
Deferred financing fees	(3,500)		(10,950)
Payments of long-term debt	(212,238)	(25,243)	(367,018)
Capital lease obligations and other	(111)	878	(628)
Exercise of stock options	17,894	5,042	5,795
Purchase of treasury stock			(19,800)
Tax benefits from exercise of stock options	6,082	2,287	6,100
Net cash used in financing activities	(82,677)	(24,472)	(23,196)
Effect of exchange rate changes on cash	5,706	2,995	(6,890)
Net (decrease) increase in cash and cash equivalents	(92,173)	37,881	142,541
Cash and cash equivalents at beginning of year	201,042	163,161	20,620
Cash and cash equivalents at end of year	$ 108,869	$ 201,042	$ 163,161

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Noncash interest expense accretion and amortization of deferred finance fees.

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Proceeds From (Repayments Of) Capital Lease Obligations And Other

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The component of interest expense comprised of the periodic charge against earnings over the life of the financing arrangement to which such costs relate.

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-Name Regulation S-X (SX)
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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 8
-Article 9

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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-Name Statement of Financial Accounting Standard (FAS)
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-Subparagraph o(1)

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Includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Entity may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Compensating balance arrangements that do not legally restrict the withdrawal or usage of cash amounts may be reported as Cash and Cash Equivalents, while legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or company statements of intention with regard to particular deposits should not be reported as cash and cash equivalents.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 1
-Article 5

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The net change between the beginning and ending balance of cash and cash equivalents.

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- Definition

The component of income tax expense for the period representing the net change in the entity's deferred tax assets and liabilities pertaining to continuing operations.

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-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

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-Name Statement of Financial Accounting Standard (FAS)
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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 289

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 5

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The effect of exchange rate changes on cash balances held in foreign currencies.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 25

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- Definition

Reductions in the entity's income taxes that arise when compensation cost (from non-qualified share-based compensation) recognized on the entity's tax return exceeds compensation cost from share-based compensation recognized in financial statements. This element represents the cash inflow reported in the enterprise's financing activities.

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-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 00-15
-Paragraph 3

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- Definition

The difference between the sale price or salvage price and the book value of a property, plant, and equipment asset that was sold or retired during the reporting period. This element refers to the gain (loss).

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28

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The net change during the reporting period in the aggregate amount of obligations due within one year (or one business cycle). This may include trade payables, amounts due to related parties, royalties payable, and other obligations.

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- Definition

The net change during the reporting period in amount due within one year (or one business cycle) from customers for the credit sale of goods and services.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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The net change during the reporting period in the aggregate amount of expenses incurred but not yet paid.

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The net change during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities.

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The net change during the reporting period in other operating assets not otherwise defined in the taxonomy.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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The net change during the reporting period in other operating obligations not otherwise defined in the taxonomy.

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-Name Statement of Financial Accounting Standard (FAS)
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The net change during the reporting period in the value of this group of assets within the working capital section.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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- Definition

The net cash inflow (outflow) from financing activity for the period.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 26

+ Details

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- Definition

The net cash inflow (outflow) from investing activity.

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-Name Statement of Financial Accounting Standard (FAS)
-Number 95
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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities.

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The net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities include all transactions and events that are not defined as investing or financing activities. Operating activities generally involve producing and delivering goods and providing services. Cash flows from operating activities are generally the cash effects of transactions and other events that enter into the determination of net income.

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 19
-Article 5

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
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-Name Statement of Financial Accounting Standard (FAS)
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-Name Emerging Issues Task Force (EITF)
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- Definition

The cash outflow to reacquire common stock during the period.

+ References

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- Definition

The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 18, 19, 20

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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-Subparagraph c

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

+ Details

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The net cash inflow (outflow) for borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

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- Definition

The cash inflow associated with the amount received from holders exercising their stock options.

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-Paragraph 19
-Subparagraph a

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Amount of the current period expense charged against operations, the offset which is generally to the allowance for doubtful accounts for the purpose of reducing receivables, including notes receivable, to an amount that approximates their net realizable value (the amount expected to be collected).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 28

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 5
-Article 5

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock options, amortization of restricted stock, and adjustment for officers compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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-Paragraph 28

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