import re
from pprint import pprint

pattern = r"(\w+:[^|]+\|\s\d\d\s\|(?:\s\d{4}\s\|){2}\s.{2}\d{4}\s\|\s-?\d+(?:\.\d+)?),"
s = "ICS: Basic Maintenance | 30 | 5877 | 0000 | IT0000 | 12000.0,ICS: E-Rate discount (85%) | 30 | 5877 | 0000 | IT0000 | -10200.0,ICS: Basic Maintenance | 40 | 5877 | 0000 | IT0000 | 9000.0,ICMS: E-Rate discount (85%) | 40 | 5877 | 0000 | IT0000 | -7650.0,ICS: Basic Maintenance | 20 | 5877 | 0000 | IT0000 | 13500.0,ICS: E-Rate discount (85%) | 20 | 5877 | 0000 | IT0000 | -11475.0,ICCMS: Basic Maintenance | 70 | 5877 | 0000 | IT0000 | 12000.0,ICCMS: E-Rate discount (85%) | 70 | 5877 | 0000 | IT0000 | -10200.0,ITSM: Laptops, Desktops, Computers | 30 | 4400 | IT0000 | 720400.0"

pprint(list(filter(None, re.split(pattern, s))))