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Assets Held for Sale
3 Months Ended
Mar. 31, 2018
Assets Held-for-sale, Not Part of Disposal Group [Abstract]  
Assets Held for Sale
Assets Held for Sale
In the second quarter of 2017, we began actively marketing for sale unutilized property in Chandler, Arizona, consisting of a building and two adjacent parcels of land with an aggregate net book value of $0.9 million. The assets are classified as held for sale and are no longer being depreciated.