Condensed Consolidating Financial Statements (Schedule Of Condensed Consolidating Income Statements) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Apr. 30, 2016	Jan. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Apr. 30, 2015	Jan. 31, 2015	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Total revenues	$ 2,297,477	$ 474,543	$ 128,415	$ 137,718	$ 2,301,370	$ 509,074	$ 134,628	$ 133,586	$ 3,038,153	$ 3,078,658	$ 3,024,295
Cost of revenues									1,685,552	1,630,490	1,572,377
Goodwill, Impairment Loss									0	0
Selling, general and administrative									719,409	653,502	633,428
Total operating expenses									2,404,961	2,283,992	2,205,805
Other income, net									17,701	1,314	36,315
Interest expense on borrowings									(68,962)	(45,246)	(55,279)
Other expenses									(12,452)	(7,929)	(32,410)
Income from continuing operations before income taxes	1,140,807	(146,500)	(237,719)	(187,109)	1,210,059	(90,865)	(200,573)	(175,816)	569,479	742,805	767,116
Income taxes (benefit)	439,582	(67,851)	(95,201)	(90,604)	465,926	(55,554)	(87,346)	(66,965)	185,926	256,061	267,019
Net income (loss) from continuing operations	701,225	(78,649)	(142,518)	(96,505)	744,133	(35,311)	(113,227)	(108,851)	383,553	486,744	500,097
Net loss from discontinued operations, net of tax benefits of $5,414, $8,125 and $15,422	(563)	(3,080)	(2,489)	(3,154)	(5,292)	(1,637)	1,229	(7,381)	(9,286)	(13,081)	(24,940)
NET INCOME	$ 700,662	$ (81,729)	$ (145,007)	$ (99,659)	$ 738,841	$ (36,948)	$ (111,998)	$ (116,232)	374,267	473,663	475,157
Other comprehensive income (loss)									(12,973)	(3,437)	(5,373)
Comprehensive income									361,294	470,226	469,784
H&R Block, Inc. (Guarantor)
Condensed Financial Statements, Captions [Line Items]
Selling, general and administrative									2,537
Total operating expenses									2,537
Other income, net									381,670	475,336	478,866
Other expenses									(6,534)
Income from continuing operations before income taxes									372,599	475,336	478,866
Income taxes (benefit)									(1,668)	1,673	3,709
Net income (loss) from continuing operations									374,267	473,663	475,157
Net loss from discontinued operations, net of tax benefits of $5,414, $8,125 and $15,422									0
NET INCOME									374,267	473,663	475,157
Other comprehensive income (loss)									(12,973)	(3,437)	(5,373)
Comprehensive income									361,294	470,226	469,784
Block Financial (Issuer)
Condensed Financial Statements, Captions [Line Items]
Total revenues									192,698	226,285	235,075
Cost of revenues									102,707	96,493	124,887
Selling, general and administrative									30,780	19,053	22,505
Total operating expenses									133,487	115,546	147,392
Other income, net									25,420	2,726	20,925
Interest expense on borrowings									(68,531)	(44,884)	(54,892)
Other expenses									(3,947)	(953)	(12,888)
Income from continuing operations before income taxes									12,153	67,628	40,828
Income taxes (benefit)									1,411	2,602	10,551
Net income (loss) from continuing operations									10,742	65,026	30,277
Net loss from discontinued operations, net of tax benefits of $5,414, $8,125 and $15,422									(9,286)	(16,725)	(23,771)
NET INCOME									1,456	48,301	6,506
Other comprehensive income (loss)									(8,444)	6,738	(2,012)
Comprehensive income									(6,988)	55,039	4,494
Other Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenues									2,868,343	2,858,474	2,795,562
Cost of revenues									1,588,450	1,540,091	1,453,832
Selling, general and administrative									703,375	634,456	610,923
Total operating expenses									2,291,825	2,174,547	2,064,755
Other income, net									11,569	50,434	5,580
Interest expense on borrowings									(431)	(362)	(387)
Other expenses									(21,534)	(14,976)	(19,522)
Income from continuing operations before income taxes									566,122	719,023	716,478
Income taxes (benefit)									186,183	251,786	252,759
Net income (loss) from continuing operations									379,939	467,237	463,719
Net loss from discontinued operations, net of tax benefits of $5,414, $8,125 and $15,422										3,644	(1,169)
NET INCOME									379,939	470,881	462,550
Other comprehensive income (loss)									(12,973)	(3,437)	(5,373)
Comprehensive income									366,966	467,444	457,177
Eliminations
Condensed Financial Statements, Captions [Line Items]
Total revenues									(22,888)	(6,101)	(6,342)
Cost of revenues									(5,605)	(6,094)	(6,342)
Selling, general and administrative									(17,283)	(7)
Total operating expenses									(22,888)	(6,101)	(6,342)
Other income, net									(400,958)	(527,182)	(469,056)
Other expenses									19,563	8,000
Income from continuing operations before income taxes									(381,395)	(519,182)	(469,056)
Net income (loss) from continuing operations									(381,395)	(519,182)	(469,056)
NET INCOME									(381,395)	(519,182)	(469,056)
Other comprehensive income (loss)									21,417	(3,301)	7,385
Comprehensive income									$ (359,978)	$ (522,483)	$ (461,671)