0001666134 2023-08-23 2023-08-23 false 0001666134 8-K 2023-08-23 BLACKLINE, INC. DE 001-37924 46-3354276 21300 Victory Boulevard 12th Floor Woodland Hills CA 91367 (818) 223-9008 false false false false Common Stock, $0.01, par value BL NASDAQ false