Consolidated Statements of Stockholder's Equity Consolidated Statements of Stockholder's Equity (Parenthetical) $ in Thousands	1 Months Ended
	May 31, 2017 USD ($) shares
Additional paid-in-capital
Class of Stock [Line Items]
Capital contribution | $	$ 76,429,000
Common stock
Class of Stock [Line Items]
Common stock issuance | shares	0