Parent, Issuers, Guarantor and Non-Guarantor Condensed Consolidated Financial Statements (Details 2) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Condensed Consolidating Statement of Earnings and Comprehensive Income
Net sales	$ 964,230	$ 967,890	$ 937,755	$ 964,468	$ 944,288	$ 949,275	$ 919,471	$ 940,464	$ 3,834,343	$ 3,753,498	$ 3,622,216
Cost of products sold and distribution expenses									1,936,492	1,893,326	1,826,953
Gross profit	475,311	481,319	467,452	473,769	467,540	475,711	456,395	460,526	1,897,851	1,860,172	1,795,263
Selling, general and administrative expenses									1,313,134	1,273,513	1,202,709
Depreciation and amortization									89,391	79,663	72,192
Operating earnings (loss)									495,326	506,996	520,362
Interest expense									116,842	116,317	107,695
Earnings (loss) before provision for income taxes									378,484	390,679	412,667
Provision (benefit) for income taxes									143,397	144,686	151,516
Net earnings	$ 56,180	$ 62,463	$ 61,535	$ 54,909	$ 61,750	$ 67,756	$ 58,492	$ 57,995	235,087	245,993	261,151
Other comprehensive income (loss), net of tax									(49,157)	(18,730)	835
Total comprehensive income (loss)									185,930	227,263	261,986
Reportable Legal Entities | Parent
Condensed Consolidating Statement of Earnings and Comprehensive Income
Selling, general and administrative expenses									9,473	10,396	9,951
Depreciation and amortization									1	1
Operating earnings (loss)									(9,474)	(10,397)	(9,951)
Earnings (loss) before provision for income taxes									(9,474)	(10,397)	(9,951)
Provision (benefit) for income taxes									(3,679)	(4,037)	(3,838)
Equity in earnings of subsidiaries, net of tax									240,882	252,353	267,264
Net earnings									235,087	245,993	261,151
Total comprehensive income (loss)									235,087	245,993	261,151
Reportable Legal Entities | Sally Holdings LLC and Sally Capital Inc.
Condensed Consolidating Statement of Earnings and Comprehensive Income
Selling, general and administrative expenses									475	474	434
Operating earnings (loss)									(475)	(474)	(434)
Interest expense									116,753	116,063	107,265
Earnings (loss) before provision for income taxes									(117,228)	(116,537)	(107,699)
Provision (benefit) for income taxes									(45,532)	(45,264)	(41,832)
Equity in earnings of subsidiaries, net of tax									312,578	323,626	333,131
Net earnings									240,882	252,353	267,264
Total comprehensive income (loss)									240,882	252,353	267,264
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Consolidating Statement of Earnings and Comprehensive Income
Net sales									3,102,406	2,986,026	2,896,990
Related party sales									2,733	2,854	2,890
Cost of products sold and distribution expenses									1,545,873	1,486,048	1,437,620
Gross profit									1,559,266	1,502,832	1,462,260
Selling, general and administrative expenses									1,012,810	969,026	912,262
Depreciation and amortization									66,093	56,682	52,284
Operating earnings (loss)									480,363	477,124	497,714
Interest expense									2	13	32
Earnings (loss) before provision for income taxes									480,361	477,111	497,682
Provision (benefit) for income taxes									185,388	181,741	190,753
Equity in earnings of subsidiaries, net of tax									17,605	28,256	26,202
Net earnings									312,578	323,626	333,131
Total comprehensive income (loss)									312,578	323,626	333,131
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Consolidating Statement of Earnings and Comprehensive Income
Net sales									731,937	767,472	725,226
Cost of products sold and distribution expenses									393,352	410,132	392,223
Gross profit									338,585	357,340	333,003
Selling, general and administrative expenses									290,376	293,617	280,062
Depreciation and amortization									23,297	22,980	19,908
Operating earnings (loss)									24,912	40,743	33,033
Interest expense									87	241	398
Earnings (loss) before provision for income taxes									24,825	40,502	32,635
Provision (benefit) for income taxes									7,220	12,246	6,433
Net earnings									17,605	28,256	26,202
Other comprehensive income (loss), net of tax									(49,157)	(18,730)	835
Total comprehensive income (loss)									(31,552)	9,526	27,037
Consolidating Eliminations
Condensed Consolidating Statement of Earnings and Comprehensive Income
Related party sales									(2,733)	(2,854)	(2,890)
Cost of products sold and distribution expenses									(2,733)	(2,854)	(2,890)
Equity in earnings of subsidiaries, net of tax									(571,065)	(604,235)	(626,597)
Net earnings									(571,065)	(604,235)	(626,597)
Total comprehensive income (loss)									$ (571,065)	$ (604,235)	$ (626,597)