CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Current assets
Cash	$ 244.0	$ 3.7
Accounts receivable, net of allowance for doubtful accounts of $5.3 in 2020 (2019 - $2.5)	68.6	78.6
Contract assets, net of allowance for doubtful accounts of $- in 2020 (2019 - $2.9) (Note 3)		6.8
Inventory (Note 5)	8.4	8.5
Prepaid expenses and other current assets (Note 11)	11.0	8.8
Total current assets	332.0	106.4
Noncurrent assets
Goodwill (Note 6)	422.0	421.3
Other intangible assets, net (Note 7)	192.2	213.2
Capitalized acquisition costs, net (Note 8)	29.3	26.4
Equipment under lease (Note 3)	23.3
Property, plant and equipment, net (Note 9)	14.2	15.4
Contract assets, net of allowance for doubtful accounts of $- in 2020 (2019 - $1.7) (Note 3)		3.9
Other noncurrent assets	1.3	1.4
Total noncurrent assets	682.3	681.6
Total assets	1,014.3	788.0
Current liabilities
Current portion of debt (Note 10)	2.6	5.3
Accounts payable	64.8	58.1
Accrued expenses and other current liabilities (Note 11)	24.4	60.9
Deferred revenue (Note 3)	8.2	5.6
Total current liabilities	100.0	129.9
Noncurrent liabilities
Long-term debt (Note 10)	437.4	635.1
Deferred tax liability (Note 13)	3.7	4.1
Other noncurrent liabilities (Note 4)	2.6	4.8
Total noncurrent liabilities	443.7	644.0
Total liabilities	543.7	773.9
Commitments and contingencies (Note 16)
Redeemable preferred units, $100,000 par value; 430 shares authorized, issued and outstanding at December 31, 2019 (Note 17)		43.0
Members' deficit - Shift4 Payments, LLC (Note 18)
Members' equity		149.2
Stockholders' equity - Shift4 Payments, Inc. (Note 18)
Preferred stock, $0.0001 par value, 20,000,000 shares authorized at June 30, 2020, none issued and outstanding
Additional paid-in capital	517.7
Retained deficit	(257.6)	(178.4)
Total members' deficit/stockholders' equity attributable to Shift4 Payments, Inc.	260.1	(28.9)
Noncontrolling interests	210.5
Total members deficit/stockholders' equity	470.6	(28.9)
Total liabilities and members' deficit/stockholders' equity	$ 1,014.3	788.0
Class B Common Units
Members' deficit - Shift4 Payments, LLC (Note 18)
Common units		0.3
Stockholders' equity - Shift4 Payments, Inc. (Note 18)
Total members deficit/stockholders' equity		$ 0.3

Accrued expenses and other current liabilities.

No definition available.

Name:	four_AccruedExpensesAndOtherCurrentLiabilities
Namespace Prefix:	four_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).