Employee Benefit Plans (Details) $ in Thousands | 3 Months Ended | 12 Months Ended | | |
Jan. 30, 2016USD ($) | Oct. 31, 2015 | Jan. 30, 2016USD ($) | Jan. 31, 2015USD ($) | Feb. 01, 2014USD ($) | Jan. 30, 2016USD ($) | Jan. 31, 2015USD ($) |
Defined Benefit Plan Disclosure [Line Items] | | | | | | | |
Current Fiscal Year End Date | | | --01-30 | | | | |
Defined Benefit Plan, Settlements and Curtailments [Abstract] | | | | | | | |
Pension Plan, Active Participants | | | | | | 800 | |
Pension Plan, Terminated Vested Participants | | | | | | 650 | |
Compensation Expense, Transition Benefit | $ 7,000 | | | | | | |
Defined Benefit Plan, Actuarial Gain (Loss) | | | $ (7,712) | $ (15,780) | | | |
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] | | | | | | | |
Service cost - benefits earned in the period | | | 1,923 | 1,951 | $ 2,086 | | |
Interest cost on projected benefit obligation | | | 2,444 | 3,218 | 3,041 | | |
Expected investment return on plan assets | | | (2,628) | (3,219) | (2,893) | | |
Amortization of prior service cost | | | 4 | (34) | (34) | | |
Amortization of transition obligation | | | 0 | 0 | 12 | | |
Amortization of actuarial loss | | | 1,817 | 1,497 | 1,692 | | |
Curtailment loss | | | (191) | 0 | 0 | | |
Settlement loss | | | 1,912 | 1,868 | 83 | | |
Net periodic pension cost | | | $ 5,663 | $ 5,281 | $ 3,987 | | |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] | | | | | | | |
Discount Rate | | | 3.30% | 5.00% | 4.60% | | |
Rate of Increase in Compensation Levels | | | 2.80% | 3.00% | 3.50% | | |
Expected Long-term Rate of Return | | | 5.20% | 6.00% | 5.10% | | |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] | | | | | | | |
Discount Rate | | | | | | 1.20% | 3.30% |
Rate of increase in compensation levels | | | | | | 0.00% | 2.80% |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | | | | | | | |
Projected benefit obligation at beginning of year | | | $ 78,187 | $ 64,878 | | | |
Service cost | | | 1,923 | 1,951 | $ 2,086 | | |
Interest cost | | | 2,444 | 3,218 | 3,041 | | |
Plan amendments | | | 0 | 217 | | | |
Plan curtailments | | | (7,291) | 0 | | | |
Benefits and settlements paid | | | (7,564) | (7,857) | | | |
Actuarial loss (gain) | | | 7,712 | 15,780 | | | |
Projected benefit obligation at end of year | 75,411 | | 75,411 | 78,187 | 64,878 | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 55,292 | 56,329 | | | |
Actual return on plan assets | | | (3,025) | 5,685 | | | |
Employer contributions | | | 10,933 | 1,135 | | | |
Benefit and settlements paid | | | (7,564) | (7,857) | | | |
Fair market value at end of year | 55,636 | | 55,636 | 55,292 | 56,329 | | |
Defined Benefit Plan, Funded Status of Plan [Abstract] | | | | | | | |
Defined Benefit Plan, Funded Status of Plan | | | | | | $ (19,774) | $ (22,895) |
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract] | | | | | | | |
Current Liabilities | | | | | | (19,774) | (372) |
Noncurrent Liabilities | | | | | | 0 | (22,523) |
Net Amount Recognized | | | | | | (19,774) | (22,895) |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | | | | | | | |
Unrecognized past service cost | | | | | | 0 | 195 |
Unrecognized actuarial loss | | | | | | (26,418) | (24,074) |
Accumulated other comprehensive loss, pretax | | | | | | (26,418) | (24,269) |
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year | | | $ 2,500 | | | | |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] | | | | | | | |
2,016 | | | | | | 76,186 | |
2,017 | | | | | | 0 | |
2,018 | | | | | | 0 | |
2,019 | | | | | | 0 | |
2,020 | | | | | | 0 | |
2021 - 2025 | | | | | | 0 | |
Defined Benefit Plan, Assets, Target Allocations [Abstract] | | | | | | | |
Target Allocation Percentage of Assets, Liability Hedging Assets | | | 30.00% | | | | |
Target Allocation Percentage of Assets, Return Seeking Assets | | | 70.00% | | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 55,636 | | $ 55,292 | 56,329 | 56,329 | 55,636 | 55,292 |
Defined Contribution Plan, Cost Recognized | | | 6,300 | 5,900 | $ 5,700 | | |
Deferred Compensation Liability, Classified, Noncurrent | | | | | | 17,500 | 17,200 |
Supplemental Employee Retirement Plans, Defined Benefit [Member] | | | | | | | |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | | | | | | | |
Projected benefit obligation | | | | | | 5,365 | 5,528 |
Accumulated benefit obligation | | | | | | 5,365 | 4,667 |
Fair market value of plan assets | | | | | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 55,292 | | | | |
Employer contributions | | | 10,700 | | | | |
Fair market value at end of year | 55,636 | | 55,636 | 55,292 | | | |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | | | | | | | |
Projected benefit obligation | | | | | | 70,046 | 72,659 |
Accumulated benefit obligation | | | | | | 70,046 | 65,627 |
Fair market value of plan assets | | | | | | 55,636 | 55,292 |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 55,636 | | 55,292 | 55,292 | | 55,636 | 55,292 |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 1,096 | | | | |
Fair market value at end of year | 25,035 | | 25,035 | 1,096 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 25,035 | | 1,096 | 1,096 | | 25,035 | 1,096 |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 54,196 | | | | |
Fair market value at end of year | 30,601 | | 30,601 | 54,196 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 30,601 | | 54,196 | 54,196 | | 30,601 | 54,196 |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 1,096 | | | | |
Fair market value at end of year | 25,035 | | 25,035 | 1,096 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 25,035 | | 1,096 | 1,096 | | 25,035 | 1,096 |
Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 1,096 | | | | |
Fair market value at end of year | 25,035 | | 25,035 | 1,096 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 25,035 | | 1,096 | 1,096 | | 25,035 | 1,096 |
Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Long Credit [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 25,317 | | | | |
Fair market value at end of year | 19,463 | | 19,463 | 25,317 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 19,463 | | 25,317 | 25,317 | | 19,463 | 25,317 |
Pension Plans, Defined Benefit [Member] | Long Credit [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Long Credit [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 25,317 | | | | |
Fair market value at end of year | 19,463 | | 19,463 | 25,317 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 19,463 | | 25,317 | 25,317 | | 19,463 | 25,317 |
Pension Plans, Defined Benefit [Member] | Long Credit [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Intermediate Credit [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 17,972 | | | | |
Fair market value at end of year | 7,380 | | 7,380 | 17,972 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7,380 | | 17,972 | 17,972 | | 7,380 | 17,972 |
Pension Plans, Defined Benefit [Member] | Intermediate Credit [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Intermediate Credit [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 17,972 | | | | |
Fair market value at end of year | 7,380 | | 7,380 | 17,972 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 7,380 | | 17,972 | 17,972 | | 7,380 | 17,972 |
Pension Plans, Defined Benefit [Member] | Intermediate Credit [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | US Treasury Securities [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 2,778 | | 2,778 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2,778 | | 0 | 0 | | 2,778 | 0 |
Pension Plans, Defined Benefit [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 2,778 | | 2,778 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 2,778 | | 0 | 0 | | 2,778 | 0 |
Pension Plans, Defined Benefit [Member] | US Treasury Securities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | High Yield [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,674 | | | | |
Fair market value at end of year | 266 | | 266 | 2,674 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 266 | | 2,674 | 2,674 | | 266 | 2,674 |
Pension Plans, Defined Benefit [Member] | High Yield [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | High Yield [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,674 | | | | |
Fair market value at end of year | 266 | | 266 | 2,674 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 266 | | 2,674 | 2,674 | | 266 | 2,674 |
Pension Plans, Defined Benefit [Member] | High Yield [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Global Real Estate [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,894 | | | | |
Fair market value at end of year | 241 | | 241 | 2,894 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 241 | | 2,894 | 2,894 | | 241 | 2,894 |
Pension Plans, Defined Benefit [Member] | Global Real Estate [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | Global Real Estate [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,894 | | | | |
Fair market value at end of year | 241 | | 241 | 2,894 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 241 | | 2,894 | 2,894 | | 241 | 2,894 |
Pension Plans, Defined Benefit [Member] | Global Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | U.S. Equity Index [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,183 | | | | |
Fair market value at end of year | 196 | | 196 | 2,183 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 196 | | 2,183 | 2,183 | | 196 | 2,183 |
Pension Plans, Defined Benefit [Member] | U.S. Equity Index [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | U.S. Equity Index [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,183 | | | | |
Fair market value at end of year | 196 | | 196 | 2,183 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 196 | | 2,183 | 2,183 | | 196 | 2,183 |
Pension Plans, Defined Benefit [Member] | U.S. Equity Index [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | International Equities [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,034 | | | | |
Fair market value at end of year | 182 | | 182 | 2,034 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 182 | | 2,034 | 2,034 | | 182 | 2,034 |
Pension Plans, Defined Benefit [Member] | International Equities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | International Equities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 2,034 | | | | |
Fair market value at end of year | 182 | | 182 | 2,034 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 182 | | 2,034 | 2,034 | | 182 | 2,034 |
Pension Plans, Defined Benefit [Member] | International Equities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | U.S. Small Cap [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 1,122 | | | | |
Fair market value at end of year | 95 | | 95 | 1,122 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 95 | | 1,122 | 1,122 | | 95 | 1,122 |
Pension Plans, Defined Benefit [Member] | U.S. Small Cap [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | | 0 | 0 | | 0 | 0 |
Pension Plans, Defined Benefit [Member] | U.S. Small Cap [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 1,122 | | | | |
Fair market value at end of year | 95 | | 95 | 1,122 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | 95 | | 1,122 | 1,122 | | 95 | 1,122 |
Pension Plans, Defined Benefit [Member] | U.S. Small Cap [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | | | |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | | | | | | | |
Fair market value at beginning of year | | | 0 | | | | |
Fair market value at end of year | 0 | | 0 | 0 | | | |
Defined Benefit Plan, Information about Plan Assets [Abstract] | | | | | | | |
Defined Benefit Plan, Fair Value of Plan Assets | $ 0 | | $ 0 | $ 0 | | $ 0 | $ 0 |
Minimum [Member] | | | | | | | |
Defined Benefit Plan, Settlements and Curtailments [Abstract] | | | | | | | |
Pension Plan, Expected Termination Duration | | 15 months | | | | | |
Maximum [Member] | | | | | | | |
Defined Benefit Plan, Settlements and Curtailments [Abstract] | | | | | | | |
Pension Plan, Expected Termination Duration | | 24 months | | | | | |