The Writers Guild of America has detailed the vast differences between writers and the studios that led to the first strike in 15 years, which will begin Tuesday.

In a lengthy document, the guild spelled out its proposal for a TV staffing minimum, which would range from six to 12 writers per show, based on the number of episodes. That proposal is a non-starter for the studios, which declined to make a counter-offer.

The guild also wants a guaranteed minimum number of weeks of employment per season, ranging from 10 weeks to 52 weeks. The studios likewise rejected that proposal and did not make a counter-offer.