SUPPLEMENTAL CONSOLIDATING STATEMENTS - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Cash Flows from Operating Activities
Net income (loss)	$ 14,694	$ (22,867)	$ 18,022	$ (17,409)
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			45,202	40,444
Amortization of debt issue costs	381	1,012	752	2,339
Amortization of intangible assets			643	753
Amortization of original issue discount on second lien loan			120	17
Gain on sale of equipment			(4,571)	(4,675)
Provision for bad debt			825	1,371
Equity-based compensation			674	528
Deferred income taxes	1,032	0	1,212	0
Adjustment to tax receivable agreement	(3,408)	0	(2,887)	0
Unrealized gain on interest rate swap			(218)	0
Equity earnings in subsidiaries	0		0
Changes in operating assets and liabilities:
Accounts receivable			6,060	(1,096)
Inventories, prepaid expenses and other assets			(955)	(2,061)
Accounts payable			(2,271)	(1,690)
Accrued expenses and other liabilities			(1,905)	1,150
Net cash provided by operating activities			60,703	35,567
Cash Flows from Investing Activities
Purchases of rental equipment			(111,095)	(105,938)
Proceeds from sale of equipment			12,961	10,794
Purchases of property and equipment			(10,068)	(11,020)
Net cash used in investing activities			(108,202)	(106,164)
Cash Flows from Financing Activities
Repayments under revolving credit facility			(53,111)	(436,939)
Borrowings under revolving credit facility			100,911	481,912
Payment of costs directly associated with the issuance of Class A common stock			(283)	0
Intercompany			0
Net cash provided by financing activities			47,517	70,996
Net increase in cash and cash equivalents			18	399
Cash and cash equivalents, beginning of period			207	190
Cash and cash equivalents, end of period	225	$ 589	225	$ 589
Eliminations
Cash Flows from Operating Activities
Net income (loss)	(29,844)		(39,685)
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			0
Amortization of debt issue costs	0		0
Amortization of intangible assets			0
Amortization of original issue discount on second lien loan			0
Gain on sale of equipment			0
Provision for bad debt			0
Equity-based compensation			0
Deferred income taxes			0
Adjustment to tax receivable agreement	0		0
Unrealized gain on interest rate swap			0
Equity earnings in subsidiaries	29,844		39,685
Changes in operating assets and liabilities:
Accounts receivable			0
Inventories, prepaid expenses and other assets			0
Accounts payable			0
Accrued expenses and other liabilities			0
Net cash provided by operating activities			0
Cash Flows from Investing Activities
Purchases of rental equipment			0
Proceeds from sale of equipment			0
Purchases of property and equipment			0
Net cash used in investing activities			0
Cash Flows from Financing Activities
Repayments under revolving credit facility			0
Borrowings under revolving credit facility			0
Payment of costs directly associated with the issuance of Class A common stock			0
Intercompany			0
Net cash provided by financing activities			0
Net increase in cash and cash equivalents			0
Cash and cash equivalents, beginning of period			0
Cash and cash equivalents, end of period	0		0
Neff Rental LLC | Reportable Legal Entities
Cash Flows from Operating Activities
Net income (loss)	12,373		16,453
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			45,202
Amortization of debt issue costs	381		752
Amortization of intangible assets			643
Amortization of original issue discount on second lien loan			120
Gain on sale of equipment			(4,571)
Provision for bad debt			825
Equity-based compensation			674
Deferred income taxes			0
Adjustment to tax receivable agreement	0		0
Unrealized gain on interest rate swap			(218)
Equity earnings in subsidiaries	0		0
Changes in operating assets and liabilities:
Accounts receivable			6,060
Inventories, prepaid expenses and other assets			(955)
Accounts payable			(2,271)
Accrued expenses and other liabilities			(2,010)
Net cash provided by operating activities			60,704
Cash Flows from Investing Activities
Purchases of rental equipment			(111,095)
Proceeds from sale of equipment			12,961
Purchases of property and equipment			(10,068)
Net cash used in investing activities			(108,202)
Cash Flows from Financing Activities
Repayments under revolving credit facility			(53,111)
Borrowings under revolving credit facility			100,911
Payment of costs directly associated with the issuance of Class A common stock			0
Intercompany			(284)
Net cash provided by financing activities			47,516
Net increase in cash and cash equivalents			18
Cash and cash equivalents, beginning of period			205
Cash and cash equivalents, end of period	223		223
Neff LLC | Reportable Legal Entities
Cash Flows from Operating Activities
Net income (loss)	12,373		16,453
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			0
Amortization of debt issue costs	0		0
Amortization of intangible assets			0
Amortization of original issue discount on second lien loan			0
Gain on sale of equipment			0
Provision for bad debt			0
Equity-based compensation			0
Deferred income taxes			0
Adjustment to tax receivable agreement	0		0
Unrealized gain on interest rate swap			0
Equity earnings in subsidiaries	(12,373)		(16,453)
Changes in operating assets and liabilities:
Accounts receivable			0
Inventories, prepaid expenses and other assets			0
Accounts payable			0
Accrued expenses and other liabilities			0
Net cash provided by operating activities			0
Cash Flows from Investing Activities
Purchases of rental equipment			0
Proceeds from sale of equipment			0
Purchases of property and equipment			0
Net cash used in investing activities			0
Cash Flows from Financing Activities
Repayments under revolving credit facility			0
Borrowings under revolving credit facility			0
Payment of costs directly associated with the issuance of Class A common stock			0
Intercompany			0
Net cash provided by financing activities			0
Net increase in cash and cash equivalents			0
Cash and cash equivalents, beginning of period			0
Cash and cash equivalents, end of period	0		0
Neff Holdings LLC | Reportable Legal Entities
Cash Flows from Operating Activities
Net income (loss)	12,373		16,453
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			0
Amortization of debt issue costs	0		0
Amortization of intangible assets			0
Amortization of original issue discount on second lien loan			0
Gain on sale of equipment			0
Provision for bad debt			0
Equity-based compensation			0
Deferred income taxes			0
Adjustment to tax receivable agreement	0		0
Unrealized gain on interest rate swap			0
Equity earnings in subsidiaries	(12,373)		(16,453)
Changes in operating assets and liabilities:
Accounts receivable			0
Inventories, prepaid expenses and other assets			0
Accounts payable			0
Accrued expenses and other liabilities			0
Net cash provided by operating activities			0
Cash Flows from Investing Activities
Purchases of rental equipment			0
Proceeds from sale of equipment			0
Purchases of property and equipment			0
Net cash used in investing activities			0
Cash Flows from Financing Activities
Repayments under revolving credit facility			0
Borrowings under revolving credit facility			0
Payment of costs directly associated with the issuance of Class A common stock			0
Intercompany			0
Net cash provided by financing activities			0
Net increase in cash and cash equivalents			0
Cash and cash equivalents, beginning of period			0
Cash and cash equivalents, end of period	0		0
Neff Corporation | Reportable Legal Entities
Cash Flows from Operating Activities
Net income (loss)	7,419		8,348
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation			0
Amortization of debt issue costs	0		0
Amortization of intangible assets			0
Amortization of original issue discount on second lien loan			0
Gain on sale of equipment			0
Provision for bad debt			0
Equity-based compensation			0
Deferred income taxes			1,212
Adjustment to tax receivable agreement	(3,408)		(2,887)
Unrealized gain on interest rate swap			0
Equity earnings in subsidiaries	(5,098)		(6,779)
Changes in operating assets and liabilities:
Accounts receivable			0
Inventories, prepaid expenses and other assets			0
Accounts payable			0
Accrued expenses and other liabilities			105
Net cash provided by operating activities			(1)
Cash Flows from Investing Activities
Purchases of rental equipment			0
Proceeds from sale of equipment			0
Purchases of property and equipment			0
Net cash used in investing activities			0
Cash Flows from Financing Activities
Repayments under revolving credit facility			0
Borrowings under revolving credit facility			0
Payment of costs directly associated with the issuance of Class A common stock			(283)
Intercompany			284
Net cash provided by financing activities			1
Net increase in cash and cash equivalents			0
Cash and cash equivalents, beginning of period			2
Cash and cash equivalents, end of period	$ 2		$ 2