diff --git a/docs/source/conf.py b/docs/source/conf.py
index 55776b8f4..f46b11334 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -27,7 +27,7 @@ MOCK_MODULES = [
     'scipy.interpolate', 'scipy.integrate', 'scipy.optimize', 'scipy.special',
     'scipy.stats', 'scipy.spatial', 'h5py', 'pandas', 'uncertainties',
     'matplotlib', 'matplotlib.pyplot', 'openmoc',
-    'openmc.data.reconstruct'
+    'openmc.data.reconstruct', 'openmc.checkvalue'
 ]
 sys.modules.update((mod_name, MagicMock()) for mod_name in MOCK_MODULES)
 
diff --git a/docs/source/pythonapi/deplete.rst b/docs/source/pythonapi/deplete.rst
index 48cb3f1cb..b864529d1 100644
--- a/docs/source/pythonapi/deplete.rst
+++ b/docs/source/pythonapi/deplete.rst
@@ -126,8 +126,15 @@ data, such as number densities and reaction rates for each material.
    Results
    ResultsList
 
-The following functions are used to solve the depletion equations, with
-:func:`cram.CRAM48` being the default.
+The following class and functions are used to solve the depletion equations,
+with :func:`cram.CRAM48` being the default.
+
+.. autosummary::
+   :toctree: generated
+   :nosignatures:
+   :template: myintegrator.rst
+
+   cram.IPFCramSolver
 
 .. autosummary::
    :toctree: generated
@@ -196,4 +203,3 @@ the following abstract base classes:
    abc.Integrator
    abc.SIIntegrator
    abc.DepSystemSolver
-   abc.IPFCramSolver
diff --git a/openmc/deplete/__init__.py b/openmc/deplete/__init__.py
index f0b04c3de..b54d7f11d 100644
--- a/openmc/deplete/__init__.py
+++ b/openmc/deplete/__init__.py
@@ -4,12 +4,11 @@ openmc.deplete
 
 A depletion front-end tool.
 """
-from sys import exit
+import sys
+from unittest.mock import Mock
 
 from h5py import get_config
 
-from unittest.mock import Mock
-
 from .dummy_comm import DummyCommunicator
 
 try:
@@ -22,7 +21,7 @@ try:
     if not get_config().mpi and comm.size > 1:
         # Raise exception only on process 0
         if comm.rank:
-            exit()
+            sys.exit()
         raise RuntimeError(
             "Need parallel HDF5 installed to perform depletion with MPI"
         )
diff --git a/openmc/deplete/abc.py b/openmc/deplete/abc.py
index 0bcd1eb2c..462d0f346 100644
--- a/openmc/deplete/abc.py
+++ b/openmc/deplete/abc.py
@@ -28,7 +28,7 @@ from .results_list import ResultsList
 __all__ = [
     "OperatorResult", "TransportOperator", "ReactionRateHelper",
     "EnergyHelper", "FissionYieldHelper", "TalliedFissionYieldHelper",
-    "Integrator", "SIIntegrator"]
+    "Integrator", "SIIntegrator", "DepSystemSolver"]
 
 
 OperatorResult = namedtuple('OperatorResult', ['k', 'rates'])
diff --git a/openmc/deplete/cram.py b/openmc/deplete/cram.py
index f4a847907..c684b3394 100644
--- a/openmc/deplete/cram.py
+++ b/openmc/deplete/cram.py
@@ -17,7 +17,7 @@ from .abc import DepSystemSolver
 
 __all__ = [
     "deplete", "timed_deplete", "CRAM16", "CRAM48",
-    "Cram16Solver", "Cram48Solver"]
+    "Cram16Solver", "Cram48Solver", "IPFCramSolver"]
 
 
 def deplete(chain, x, rates, dt, matrix_func=None):
@@ -88,16 +88,11 @@ def timed_deplete(*args, **kwargs):
 
 
 class IPFCramSolver(DepSystemSolver):
-    r"""Class for solving depletion systems with IPF Cram
+    r"""CRAM depletion solver that uses incomplete partial factorization
 
     Provides a :meth:`__call__` that utilizes an incomplete
     partial factorization (IPF) for the Chebyshev Rational Approximation
-    Method (CRAM)
-
-    M. Pusa, "Higher-Order Chebyshev Rational Approximation
-    Method and Application to Burnup Equations," Nuclear Science And
-    Engineering, 182:3,297-318
-    `DOI: 10.13182/NSE15-26 <https://doi.org/10.13182/NSE15-26>`_
+    Method (CRAM), as described in the following paper: M. Pusa, "`Higher-Order Chebyshev Rational Approximation Method and Application to Burnup Equations <https://doi.org/10.13182/NSE15-26>`_," Nucl. Sci. Eng., 182:3, 297-318.
 
     Parameters
     ----------
@@ -256,4 +251,3 @@ Cram48Solver = IPFCramSolver(c48_alpha, c48_theta, c48_alpha0)
 del c48_alpha, c48_alpha0, c48_theta, alpha_r, alpha_i, theta_r, theta_i
 
 CRAM48 = Cram48Solver.__call__
-