## Uses of Class
com.ihr.xbrl.om.formula.functions.XFI_is_period_function

- Packages that use XFI_is_period_function
  Package | Description
  --- | ---
  com.ihr.xbrl.om.formula.functions | Provides the classes necessary for implementing all XPath2 functions defined in the XFI functions library.

- - ### Uses of XFI_is_period_function in com.ihr.xbrl.om.formula.functions

    Subclasses of XFI_is_period_function in com.ihr.xbrl.om.formula.functions
    Modifier and Type | Class and Description
    --- | ---
    `class` | `XFI_is_duration_period` The Class XFI_is_duration_period.
    `class` | `XFI_is_forever_period` The Class XFI_is_forever_period.
    `class` | `XFI_is_instant_period` The Class XFI_is_instant_period.
    `class` | `XFI_is_start_end_period` The Class XFI_is_start_end_period.
    `class` | `XFI_period_end` The Class XFI_period_end.
    `class` | `XFI_period_instant` The Class XFI_period_instant.
    `class` | `XFI_period_start` The Class XFI_period_start.