CONDENSED BALANCE SHEET - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 5,008,088	$ 4,440,816
Prepaid expenses and other current assets	229,282	274,289
Total Current Assets	5,237,370	4,715,105
Deferred tax asset	11,437	4,671
Marketable securities held in Trust Account	462,120,025	461,549,163
Total Assets	467,368,832	466,268,939
Current liabilities
Accounts payable and accrued expenses	1,032,970	186,126
Income taxes payable	18,243
Total Current Liabilities	1,051,213	186,126
Deferred underwriting fees	16,100,000	16,100,000
Total Liabilities	17,151,213	16,286,126
Commitments (Note 6)
Common stock subject to possible redemption, 44,325,276 and 44,348,925 shares at redemption value at March 31, 2018 and December 31, 2017, respectively	445,217,618	444,982,812
Stockholders' Equity
Preferred stock, $0.0001 par value; 1,000,000 authorized; none issued and outstanding
Additional paid-in capital	3,623,235	3,858,043
Retained earnings	1,375,449	1,140,643
Total Stockholders' Equity	5,000,001	5,000,001
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	467,368,832	466,268,939
Class A Common Stock
Stockholders' Equity
Common stock	167	165
Class F Common Stock
Stockholders' Equity
Common stock	$ 1,150	$ 1,150

Aggregate carrying value as of the balance sheet date of the deferred underwriting commission payable.

No definition available.

Name:	fsacu_DeferredUnderwritingCommissionNoncurrent
Namespace Prefix:	fsacu_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.