SUPPLEMENTAL CONSOLIDATING STATEMENTS - Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Revenues
Rental revenues	$ 84,820	$ 83,497	$ 158,961	$ 152,626
Equipment sales	6,174	5,467	12,961	10,794
Parts and service	3,233	3,398	6,391	6,675
Total revenues	94,227	92,362	178,313	170,095
Cost of revenues
Cost of equipment sold	4,058	2,981	8,390	6,119
Depreciation of rental equipment	21,213	18,302	40,727	36,489
Cost of rental revenues	19,511	19,308	37,370	37,624
Cost of parts and service	1,807	2,051	3,570	4,094
Total cost of revenues	46,589	42,642	90,057	84,326
Gross profit	47,638	49,720	88,256	85,769
Other operating expenses
Selling, general and administrative expenses	22,468	20,276	44,758	40,372
Other depreciation and amortization	2,657	2,462	5,118	4,708
Total other operating expenses	25,125	47,244	49,876	69,586
Income from operations	22,513	2,476	38,380	16,183
Other (income) expenses
Interest expense	10,753	8,316	21,267	15,119
Adjustment to tax receivable agreement	(3,408)	0	(2,887)	0
Gain on interest rate swap	(1,007)	0	(119)	0
Amortization of debt issue costs	381	1,012	752	2,339
Total other (income) expenses	6,719	25,224	19,013	33,354
Income (loss) before income taxes	15,794	(22,748)	19,367	(17,171)
Equity earnings in subsidiaries	0		0
Provision for income taxes	(1,100)	(119)	(1,345)	(238)
Net income (loss)	14,694	(22,867)	18,022	(17,409)
Less: net income (loss) attributable to non-controlling interest	7,275	(22,867)	9,674	(17,409)
Net income attributable to Neff Corporation	7,419	$ 0	8,348	$ 0
Eliminations
Revenues
Rental revenues	0		0
Equipment sales	0		0
Parts and service	0		0
Total revenues	0		0
Cost of revenues
Cost of equipment sold	0		0
Depreciation of rental equipment	0		0
Cost of rental revenues	0		0
Cost of parts and service	0		0
Total cost of revenues	0		0
Gross profit	0		0
Other operating expenses
Selling, general and administrative expenses	0		0
Other depreciation and amortization	0		0
Total other operating expenses	0		0
Income from operations	0		0
Other (income) expenses
Interest expense	0		0
Adjustment to tax receivable agreement	0		0
Gain on interest rate swap	0		0
Amortization of debt issue costs	0		0
Total other (income) expenses	0		0
Income (loss) before income taxes	0		0
Equity earnings in subsidiaries	(29,844)		(39,685)
Provision for income taxes	0		0
Net income (loss)	(29,844)		(39,685)
Less: net income (loss) attributable to non-controlling interest	(14,550)		(19,348)
Net income attributable to Neff Corporation	(15,294)		(20,337)
Neff Rental LLC | Reportable Legal Entities
Revenues
Rental revenues	84,820		158,961
Equipment sales	6,174		12,961
Parts and service	3,233		6,391
Total revenues	94,227		178,313
Cost of revenues
Cost of equipment sold	4,058		8,390
Depreciation of rental equipment	21,213		40,727
Cost of rental revenues	19,511		37,370
Cost of parts and service	1,807		3,570
Total cost of revenues	46,589		90,057
Gross profit	47,638		88,256
Other operating expenses
Selling, general and administrative expenses	22,468		44,758
Other depreciation and amortization	2,657		5,118
Total other operating expenses	25,125		49,876
Income from operations	22,513		38,380
Other (income) expenses
Interest expense	10,753		21,267
Adjustment to tax receivable agreement	0		0
Gain on interest rate swap	(1,007)		(119)
Amortization of debt issue costs	381		752
Total other (income) expenses	10,127		21,900
Income (loss) before income taxes	12,386		16,480
Equity earnings in subsidiaries	0		0
Provision for income taxes	(13)		(27)
Net income (loss)	12,373		16,453
Less: net income (loss) attributable to non-controlling interest	7,275		9,674
Net income attributable to Neff Corporation	5,098		6,779
Neff LLC | Reportable Legal Entities
Revenues
Rental revenues	0		0
Equipment sales	0		0
Parts and service	0		0
Total revenues	0		0
Cost of revenues
Cost of equipment sold	0		0
Depreciation of rental equipment	0		0
Cost of rental revenues	0		0
Cost of parts and service	0		0
Total cost of revenues	0		0
Gross profit	0		0
Other operating expenses
Selling, general and administrative expenses	0		0
Other depreciation and amortization	0		0
Total other operating expenses	0		0
Income from operations	0		0
Other (income) expenses
Interest expense	0		0
Adjustment to tax receivable agreement	0		0
Gain on interest rate swap	0		0
Amortization of debt issue costs	0		0
Total other (income) expenses	0		0
Income (loss) before income taxes	0		0
Equity earnings in subsidiaries	12,373		16,453
Provision for income taxes	0		0
Net income (loss)	12,373		16,453
Less: net income (loss) attributable to non-controlling interest	7,275		9,674
Net income attributable to Neff Corporation	5,098		6,779
Neff Holdings LLC | Reportable Legal Entities
Revenues
Rental revenues	0		0
Equipment sales	0		0
Parts and service	0		0
Total revenues	0		0
Cost of revenues
Cost of equipment sold	0		0
Depreciation of rental equipment	0		0
Cost of rental revenues	0		0
Cost of parts and service	0		0
Total cost of revenues	0		0
Gross profit	0		0
Other operating expenses
Selling, general and administrative expenses	0		0
Other depreciation and amortization	0		0
Total other operating expenses	0		0
Income from operations	0		0
Other (income) expenses
Interest expense	0		0
Adjustment to tax receivable agreement	0		0
Gain on interest rate swap	0		0
Amortization of debt issue costs	0		0
Total other (income) expenses	0		0
Income (loss) before income taxes	0		0
Equity earnings in subsidiaries	12,373		16,453
Provision for income taxes	0		0
Net income (loss)	12,373		16,453
Less: net income (loss) attributable to non-controlling interest	7,275		9,674
Net income attributable to Neff Corporation	5,098		6,779
Neff Corporation | Reportable Legal Entities
Revenues
Rental revenues	0		0
Equipment sales	0		0
Parts and service	0		0
Total revenues	0		0
Cost of revenues
Cost of equipment sold	0		0
Depreciation of rental equipment	0		0
Cost of rental revenues	0		0
Cost of parts and service	0		0
Total cost of revenues	0		0
Gross profit	0		0
Other operating expenses
Selling, general and administrative expenses	0		0
Other depreciation and amortization	0		0
Total other operating expenses	0		0
Income from operations	0		0
Other (income) expenses
Interest expense	0		0
Adjustment to tax receivable agreement	(3,408)		(2,887)
Gain on interest rate swap	0		0
Amortization of debt issue costs	0		0
Total other (income) expenses	(3,408)		(2,887)
Income (loss) before income taxes	3,408		2,887
Equity earnings in subsidiaries	5,098		6,779
Provision for income taxes	(1,087)		(1,318)
Net income (loss)	7,419		8,348
Less: net income (loss) attributable to non-controlling interest	0		0
Net income attributable to Neff Corporation	$ 7,419		$ 8,348