Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net loss	$ (24,222)	$ (8,998)
Adjustments to reconcile net loss to cash provided by operating activities, net of the effects of acquisitions:
Depreciation and amortization	37,713	40,174
Loss on disposal of fixed assets	411	38
Deal-related compensation expense and accretion charges	38	38
Share-based compensation expense associated with equity awards	10,231	8,132
Deferred income taxes	(8,564)	(11,328)
Other gains (losses)	616	(17)
Changes in assets and liabilities
Accounts receivable and unbilled costs	109,572	50,757
Due from related party	0	(1,984)
Inventories	(4,737)	(3,714)
Prepaid expenses and other assets	(1,152)	(5,429)
Accounts payable	(7,126)	4,858
Accrued compensation and other expenses	(20,787)	(18,108)
Due to related party	(22)	704
Income taxes payable	185	(5)
Deferred revenue	(39,521)	(17,385)
Net cash provided by operating activities	52,635	37,733
Cash flows from investing activities:
Purchase of marketable securities	(35,413)	(35,806)
Proceeds from maturity of marketable securities	47,318	53,159
Purchase of fixed assets	(3,297)	(9,218)
Purchase of intangible assets	0	(20)
Increase in deposits	(9)	(62)
Collection of contingently returnable consideration from related party	0	5,133
Capitalized software development costs	(45)	(290)
Net cash provided by investing activities	8,554	12,896
Cash flows from financing activities:
Treasury stock repurchases	(100,000)	(50,000)
Tax withholding on restricted stock units	(5,381)	(68)
Net cash used in financing activities	(105,381)	(50,068)
Effect of exchange rate changes on cash and cash equivalents	1,048	(402)
Net (decrease) increase in cash and cash equivalents	(43,144)	159
Cash and cash equivalents and restricted cash, beginning of period	305,726	210,897
Cash and cash equivalents and restricted cash, end of period	262,582	211,056
Non-cash transactions:
Transfers of inventory to fixed assets	4,262	2,673
Additions to property, plant and equipment included in accounts payable	$ 522	$ 374

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