CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Fee revenue	$ 202,004	$ 185,951	$ 584,929	$ 592,418
Reimbursed out-of-pocket engagement expenses	8,268	8,672	26,165	26,783
Total revenue	210,272	194,623	611,094	619,201
Compensation and benefits	139,788	125,741	400,859	394,593
General and administrative expenses	35,915	35,242	102,675	104,204
Engagement expenses	16,334	13,023	46,013	41,594
Depreciation and amortization	5,088	3,523	13,127	10,367
Restructuring charges, net	4,441	929	19,936	929
Total operating expenses	201,566	178,458	582,610	551,687
Operating income	8,706	16,165	28,484	67,514
Other income (loss), net	3,296	1,607	3,808	(3,032)
Interest expense, net	(360)	(310)	(1,721)	(1,280)
Income before provision for income taxes and equity in earnings of unconsolidated subsidiaries	11,642	17,462	30,571	63,202
Income tax provision	2,753	6,038	11,042	22,199
Equity in earnings of unconsolidated subsidiaries, net	593	293	1,567	1,272
Net income	$ 9,482	$ 11,717	$ 21,096	$ 42,275
Earnings per common share:
Basic	$ 0.20	$ 0.25	$ 0.45	$ 0.91
Diluted	$ 0.20	$ 0.25	$ 0.44	$ 0.90
Weighted-average common shares outstanding:
Basic	47,367	46,528	47,149	46,332
Diluted	48,015	47,345	47,742	47,193