3. ASSETS HELD FOR SALE

Our assets held for sale at March 31, 2020, primarily consisted of three 660-ton crawler cranes and a deck barge.  A summary of our assets held for sale at March 31, 2020 and December 31, 2019, is as follows (in thousands):

During the three months ended March 31, 2020 and 2019, we received proceeds of $1.1 million and $0.4 million, respectively, related to the sale of assets that were held for sale.  During the three months ended March 31, 2020, no gain or loss was recognized on the asset sales as the proceeds approximated the carrying value of the assets. During the three months ended March 31, 2019, we recorded a gain of $0.4 million on the asset sales and recorded impairments of $0.3 million related to other assets that were held for sale.