Revenue - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Oct. 31, 2019	Aug. 02, 2019	May 03, 2019	Feb. 01, 2019	Oct. 31, 2018	Aug. 03, 2018	May 04, 2018	Feb. 02, 2018	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 734,379	$ 838,713	$ 962,036	$ 602,956	$ 539,303	$ 655,821	$ 875,280	$ 548,246	$ 3,138,084	$ 2,618,650	$ 2,505,176
United States
Disaggregation of Revenue [Line Items]
Net sales									2,413,153	1,975,562	1,893,249
Foreign Countries
Disaggregation of Revenue [Line Items]
Net sales									724,931	643,088	611,927
Equipment
Disaggregation of Revenue [Line Items]
Net sales									2,747,935	2,210,047	2,060,354
Irrigation
Disaggregation of Revenue [Line Items]
Net sales									390,149	408,603
Operating Segments | Professional
Disaggregation of Revenue [Line Items]
Net sales									2,443,448	1,946,999	1,811,705
Operating Segments | Professional | United States
Disaggregation of Revenue [Line Items]
Net sales									1,853,054	1,441,815
Operating Segments | Professional | Foreign Countries
Disaggregation of Revenue [Line Items]
Net sales									590,394	505,184
Operating Segments | Professional | Equipment
Disaggregation of Revenue [Line Items]
Net sales									2,097,965	1,582,024
Operating Segments | Professional | Irrigation
Disaggregation of Revenue [Line Items]
Net sales									345,483	364,975
Operating Segments | Residential
Disaggregation of Revenue [Line Items]
Net sales									661,274	654,413	673,247
Operating Segments | Residential | United States
Disaggregation of Revenue [Line Items]
Net sales									526,737	516,509
Operating Segments | Residential | Foreign Countries
Disaggregation of Revenue [Line Items]
Net sales									134,537	137,904
Operating Segments | Residential | Equipment
Disaggregation of Revenue [Line Items]
Net sales									628,521	617,827
Operating Segments | Residential | Irrigation
Disaggregation of Revenue [Line Items]
Net sales									32,753	36,586
Other
Disaggregation of Revenue [Line Items]
Net sales									33,362	17,238	$ 20,224
Other | United States
Disaggregation of Revenue [Line Items]
Net sales									33,362	17,238
Other | Foreign Countries
Disaggregation of Revenue [Line Items]
Net sales									0	0
Other | Equipment
Disaggregation of Revenue [Line Items]
Net sales									21,449	10,196
Other | Irrigation
Disaggregation of Revenue [Line Items]
Net sales									$ 11,913	$ 7,042