A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000182249Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018226Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000125486Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018241Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000027670Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018250Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000027671Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018227Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000216341Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018239Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000125484Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000157445Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018249Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018230Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018242Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000182250Member but this fact is not included...

A value of Performance data shown represents past performance and is no guarantee of, and is not necessarily indicative of, future results. Total return and value will vary, and you may have a gain or loss when shares are sold. Current performance may be lower or higher than quoted. For the most recent month-end performance, was reported for the concept oef:PerformancePastDoesNotIndicateFuture. This value has dimensions of oef:ClassAxis=natixis:C000018229Member but this fact is not included...