Balance Sheets - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Current assets
Cash	$ 221,384	$ 1,123,821
Prepaid expenses	93,479	109,000
Total current assets	314,863	1,232,821
Cash and marketable securities held in Trust Account	336,670,506	330,565,672
Total assets	336,985,369	331,798,493
Current liabilities
Accrued expenses	121,176	32,104
Accrued transaction costs	3,683,688
Accrued income tax payable	1,012,257
Total current liabilities	4,817,121	32,104
Deferred tax lability	94,241	89,409
Deferred underwriter compensation	12,150,000	12,150,000
Total liabilities	17,061,362	12,271,513
Commitments and contingencies
Common stock subject to possible redemption, 30,961,528 and 31,398,875 shares at redemption value as of December 31, 2018 and 2017, respectively	314,924,006	314,526,979
Stockholders' equity:
Preferred stock, $0.0001 par value; 1,000,000 shares authorized; none issued and outstanding
Additional paid-in capital	4,265,597	4,662,669
Accumulated earnings	733,375	336,347
Total stockholders' equity	5,000,001	5,000,001
Total liabilities and stockholders' equity	336,985,369	331,798,493
Class A Common Stock
Stockholders' equity:
Common stock , value	204	160
Total stockholders' equity	204	160
Class B Common Stock
Stockholders' equity:
Common stock , value	825	825
Total stockholders' equity	$ 825	$ 825