function getNumericPresentation( &$entry )
	{
		if ( isset( $entry['precision'] ) && strval( $entry['precision'] ) === '0' )
		{
			return NAN;
		}

		// Using PHP_ROUND_HALF_EVEN see XBRL 2.1 section 4.6.7.2
		$decimals = $this->getDecimals( $entry );
		return $decimals == INF
			? $entry['value']
			: round( $entry['value'], $this->getDecimals( $entry ), PHP_ROUND_HALF_EVEN );
	}