Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012
Assets
Cash and cash equivalents	$ 19,847	$ 22,444	[1]
Accounts receivable, net of allowance for doubtful accounts of $5,620 and $6,273	155,297	163,888	[1]
Inventories, net	56,825	56,956	[1]
Costs/estimated earnings in excess of billings on uncompleted contracts	101,631	87,634	[1]
Other assets	23,593	22,678	[1]
Total current assets	357,193	353,600
Property, plant and equipment, net	27,491	27,109	[1]
Goodwill, net	345,387	346,438	[1]
Intangibles, net	123,081	126,541	[1]
Other assets	31,941	34,335	[1]
Total assets	885,093	888,023
Liabilities
Accounts payable	68,121	71,095	[1]
Accrued compensation and benefits	22,220	31,151	[1]
Deferred revenue	33,493	35,601	[1]
Billings in excess of costs/estimated earnings on uncompleted contracts	16,634	14,315	[1]
Income taxes	3,072	2,574	[1]
Other liabilities	35,256	32,697	[1]
Total current liabilities	178,796	187,433
Long-term debt	200,804	179,621	[1]
Other liabilities	25,051	26,585	[1]
Total liabilities	404,651	393,639
Stockholders' Equity
Preferred stock authorized 5,000, par value $1.00, none issued	0	0	[1]
Common stock authorized 100,000, par value $.001, 16,933 and 17,480 shares outstanding, 25,897 and 25,730 issued	26	26	[1]
Additional paid-in capital	481,567	478,726	[1]
Retained earnings	351,819	347,242	[1]
Accumulated other comprehensive income	3,134	7,262	[1]
Treasury stock, at cost 8,964 and 8,250 shares	(356,104)	(338,872)	[1]
Total stockholders’ equity	480,442	494,384
Total liabilities and stockholders’ equity	$ 885,093	$ 888,023

[1] Derived from audited financial statements