Consolidated Statements of Operations - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales		$ 1,924,534	$ 1,934,951	$ 5,075,247	$ 4,482,555
Cost of products sold		1,451,998	1,441,057	3,832,154	3,380,531
Gross profit		472,536	493,894	1,243,093	1,102,024
Operating expense:
Selling, general and administrative		328,827	323,194	976,928	858,534
Depreciation		17,731	15,811	52,779	41,640
Amortization		51,724	50,076	155,508	105,339
Total operating expense		398,282	389,081	1,185,215	1,005,513
Income (loss) from operations		74,254	104,813	57,878	96,511
Interest expense, financing costs, and other		38,089	37,348	116,902	99,486
Income (loss) before provision for income taxes		36,165	67,465	(59,024)	(2,975)
Provision for (benefit from) income taxes	[1]	5,178	18,090	(21,032)	(53,291)
Net income (loss)		30,987	49,375	(37,992)	50,316
Dividends on preferred shares	[2]	6,000	6,000	18,000	12,000
Net income (loss) attributable to common shareholders		$ 24,987	$ 43,375	$ (55,992)	$ 38,316
Weighted-average common stock outstanding:
Basic		68,477,946	68,086,387	68,391,882	67,976,980
Diluted		69,265,384	69,148,143	68,391,882	69,240,040
Net income (loss) per share:
Basic	[3]	$ 0.32	$ 0.56	$ (0.82)	$ 0.52
Diluted	[3]	$ 0.32	$ 0.55	$ (0.82)	$ 0.51

[1] Three and nine months ended June 30, 2018 amounts include a net tax benefit of $1.2 million and $49.2 million, respectively, resulting from recording the provisional impact of the enactment of the 2017 Tax Cuts and Jobs Act (“TCJA”).

[2] Three months ended June 30, 2019 amount is composed of $5.0 million in undeclared cumulative Preferred Stock dividends, as well as an additional $1.0 million of Preferred Stock dividends that had been declared and paid as of period end. Three months ended June 30, 2018 amount is composed of $6.0 million in undeclared cumulative Preferred Stock dividends. Nine months ended June 30, 2019 amount is composed of $5.0 million in undeclared cumulative Preferred Stock dividends, as well as an additional $13.0 million of Preferred Stock dividends that had been declared and paid as of period end. Nine months ended June 30, 2018 amount is composed of $6.0 million in undeclared cumulative Preferred Stock dividends, as well as an additional $6.0 million of Preferred Stock dividends that had been declared and paid as of period end. See Note 3 for further discussion.

[3] See Note 5 for detailed calculations and further discussion.