CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 21,941	$ 7,437
Non-cash items included in net income:
Depreciation	13,105	10,516
Amortization of intangible assets	1,708	732
Loss (gain) on equity-method investment	(1)	103
Share-based compensation expense	8,517	6,749
Excess tax benefits from share-based compensation	(3,280)	(665)
Deferred income taxes	(1,048)	(6,732)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(48,661)	(41,208)
Inventories	(10,007)	(54,164)
Other assets	(1,171)	(2,383)
Accounts payable	42,769	34,541
Accrued and other liabilities	(10,135)	19,475
Net cash provided by (used in) operating activities	13,737	(25,599)
Cash flows from investing activities:
Purchases of property, plant and equipment	(7,420)	(15,290)
Investment in privately held companies	(320)	(240)
Acquisition, net of cash acquired	(53,987)	0
Purchase of other intangible asset	(715)	0
Release of restricted cash	715	0
Purchase of trading investments	(4,229)	(903)
Proceeds from sales of trading investments	4,231	840
Net cash used in investing activities	(61,725)	(15,593)
Cash flows from financing activities:
Purchases of treasury shares	(24,422)	(8,814)
Proceeds from sales of shares upon exercise of options and purchase rights	599	4,066
Tax withholdings related to net share settlements of restricted stock units	(9,185)	(1,296)
Excess tax benefits from share-based compensation	3,280	665
Net cash used in financing activities	(29,728)	(5,379)
Effect of exchange rate changes on cash and cash equivalents	(1,368)	1,761
Net decrease in cash and cash equivalents	(79,084)	(44,810)
Cash and cash equivalents, beginning of the period	519,195	537,038
Cash and cash equivalents, end of the period	440,111	492,228
Non-cash investing activities:
Property, plant and equipment purchased during the period and included in period end liability accounts	3,502	10,358
The following amounts reflected in the statements of cash flows are included in discontinued operations:
Depreciation	0	705
Amortization of other intangible assets	0	564
Share-based compensation expense	0	226
Purchases of property, plant and equipment	0	385
Cash and cash equivalents, beginning of the period	0	3,659
Cash and cash equivalents, end of the period	$ 0	$ 1,911

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The cash outflow to acquire securities classified as trading securities and held for investment purposes. Excludes payments for trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

+ References

No definition available.

+ Details

Name:	us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total cash inflow associated with the amount received from holders to acquire the entity's shares under incentive and share awards, including stock option exercises. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow associated with the sale of securities classified as trading securities and held for investment purposes. Excludes proceeds from trading securities purchased and held principally for the purpose of selling them in the near term (thus held for only a short period of time).

+ References

No definition available.

+ Details

Name:	us-gaap_ProceedsFromSaleOfTradingSecuritiesHeldforinvestment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, 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

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration