995200090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink The First Principal Executive Officer refers to Gerald L. Morgan. Gerald L Morgan [Member] Gerald L Morgan The Second Principal Executive Officer refers to W. Kent Taylor. W Kent Taylor [Member] W Kent Taylor The Non-Principal Executive Officers include Tonya R. Robinson. Tonya R Robinson [Member] Tonya R Robinson The Non-Principal Executive Officers include Doug W. Thompson. Doug W Thompson [Member] Doug W Thompson The Non-Principal Executive Officers include S. Chris Jacobsen. S Chris Jacobsen [Member] S Chris Jacobsen The Non-Principal Executive Officers include Christopher C. Colson. Christopher C Colson [Member] Christopher C Colson The Non-Principal Executive Officers include Hernan E. Mujica. Hernan E Mujica [Member] Hernan E Mujica The Non-Principal Executive Officers include Regina A. Tobin. Regina A Tobin [Member] Regina A Tobin The Non-Principal Executive Officers include David Christopher Monroe. David Christopher Monroe [Member] David Christopher Monroe The Non-Principal Executive Officers include Keith V. Humpich. Keith V. Humpich [Member] Keith V. Humpich The Non-Principal Executive Officers include Travis C. Doster. Travis C. Doster [Member] Travis C. Doster The Non-Principal Executive Officers include Michael S. Lenihan. Michael S. Lenihan [Member] The Non-Principal Executive Officers include L. Paul Marshall. L. Paul Marshall [Member] Change In Shareholder Rtn Percentage Change In Shareholder Rtn Percentage Change In Peer Group 1 Rtn Percentage Change In Peer Group 1 Rtn Percentage