VENEZUELAN OPERATIONS	12 Months Ended
Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]
VENEZUELAN OPERATIONS	VENEZUELAN OPERATIONS In June 2015, we disposed of our Venezuelan operations and realized no gain or loss from the transaction. Our annual revenues have historically been less than one percent of our consolidated revenues for all periods presented. Because of the uncertain political environment in Venezuela, starting in the quarter ended February 28, 2010, we began to account for Venezuelan operations pursuant to accounting guidance for hyperinflationary economies. Following the designation of the Venezuelan economy as hyperinflationary, we ceased taking the effects of currency fluctuations to accumulated other comprehensive income (loss) and began reflecting all effects as a component of non-operating income (loss) in our consolidated statements of operations. Prior to February 1, 2015, we included the results of our Venezuelan operations in our consolidated financial statements using the consolidation method of accounting. Venezuelan exchange control regulations resulted in an other-than-temporary lack of exchangeability between the Venezuelan Bolivar and U.S. Dollar, and restricted our Venezuelan operations’ ability to pay dividends and obligations denominated in U.S. Dollars. These exchange regulations, combined with other Venezuelan regulations, constrained equipment availability and significantly limited our Venezuelan operations’ ability to maintain normal operations. As a result of these conditions, and in accordance with ASC 810, Consolidation, we began reporting the results of our Venezuelan operations using the cost method of accounting. The change, which we made effective February 1, 2015, resulted in a pre-tax charge of $1.2 million for the year ended May 31, 2015.

VENEZUELAN OPERATIONS

In June 2015, we disposed of our Venezuelan operations and realized no gain or loss from the transaction. Our annual revenues have historically been less than one percent of our consolidated revenues for all periods presented. Because of the uncertain political environment in Venezuela, starting in the quarter ended February 28, 2010, we began to account for Venezuelan operations pursuant to accounting guidance for hyperinflationary economies. Following the designation of the Venezuelan economy as hyperinflationary, we ceased taking the effects of currency fluctuations to accumulated other comprehensive income (loss) and began reflecting all effects as a component of non-operating income (loss) in our consolidated statements of operations.

Prior to February 1, 2015, we included the results of our Venezuelan operations in our consolidated financial statements using the consolidation method of accounting. Venezuelan exchange control regulations resulted in an other-than-temporary lack of exchangeability between the Venezuelan Bolivar and U.S. Dollar, and restricted our Venezuelan operations’ ability to pay dividends and obligations denominated in U.S. Dollars. These exchange regulations, combined with other Venezuelan regulations, constrained equipment availability and significantly limited our Venezuelan operations’ ability to maintain normal operations. As a result of these conditions, and in accordance with ASC 810, Consolidation, we began reporting the results of our Venezuelan operations using the cost method of accounting. The change, which we made effective February 1, 2015, resulted in a pre-tax charge of $1.2 million for the year ended May 31, 2015.