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Related Party Transaction	6 Months Ended
Related Party Transaction	Mar. 31, 2017
Related Party Transaction
Related Party Transaction	13. Related Party Transactions During the six months ended March 31, 2017, Headwaters was involved in the following transactions with related parties. One of Headwaters’ subsidiaries purchased approximately $1.6 million of supplies from a vendor owned by an employee of the subsidiary. During the March 2017 quarter, another subsidiary loaned approximately $1.4 million to the President of the subsidiary, which non-interest bearing loan was repaid before March 31, 2017.