CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Operating activities:
Net income	$ 7,437	$ 19,676
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	10,516	9,951
Amortization of other intangible assets	732	2,782
Share-based compensation expense	6,749	6,938
Impairment of investment	103	0
Loss (gain) on disposal of property, plant and equipment	0	22
Excess tax benefits from share-based compensation	(665)	(381)
Deferred income taxes	(6,732)	(1,832)
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(41,208)	(36,663)
Inventories	(54,164)	(18,463)
Other assets	(2,383)	(2,063)
Accounts payable	34,541	40,775
Accrued and other liabilities	19,475	7,016
Net cash provided by (used in) operating activities	(25,599)	27,758
Investing activities:
Purchases of property, plant and equipment	(15,290)	(11,243)
Investment in privately held companies	(240)	(1,050)
Purchase of trading investments	(903)	(454)
Proceeds from sales of trading investments	840	506
Net cash used in investing activities	(15,593)	(12,241)
Financing activities:
Contingent consideration related to prior acquisition	0	(100)
Purchases of treasury shares	(8,814)	0
Proceeds from sales of shares upon exercise of options	4,066	574
Tax withholdings related to net share settlements of restricted stock units	(1,296)	(695)
Excess tax benefits from share-based compensation	665	381
Net cash provided by (used in) financing activities	(5,379)	160
Effect of exchange rate changes on cash and cash equivalents	1,761	(108)
Net increase (decrease) in cash and cash equivalents	(44,810)	15,569
Cash and cash equivalents, beginning of the period	537,038	469,412
Cash and cash equivalents, end of the period	492,228	484,981
Non-cash investing activities:
Property, plant and equipment purchased during the period and included in period end liability accounts	$ 10,358	$ 5,459