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Subsequent Events
9 Months Ended
Sep. 30, 2020
Subsequent Events [Abstract]  
Subsequent Events Subsequent EventsOn October 31, 2020, the Company completed the sale of its Fairfield, Pennsylvania and Martinsburg, West Virginia book manufacturing plants to Berryville Graphics, a division of Bertelsmann Printing Group USA, a media, services and education company. This sale was the final step in the previously announced strategic decision to divest the Company’s Book business to optimize its product portfolio. The Company used the proceeds from the sale to reduce debt.