Employee Benefit Plans (Details) (USD $) | 12 Months Ended |
Feb. 01, 2014 | Feb. 02, 2013 | Jan. 28, 2012 |
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] | ' | ' | ' |
Service cost - benefits earned in the period | $2,086,000 | $2,171,000 | $2,211,000 |
Interest cost on projected benefit obligation | 3,041,000 | 3,292,000 | 3,496,000 |
Expected investment return on plan assets | -2,893,000 | -3,089,000 | -4,627,000 |
Amortization of prior service cost | -34,000 | -34,000 | -34,000 |
Amortization of transition obligation | 12,000 | 13,000 | 13,000 |
Amortization of actuarial loss | 1,692,000 | 2,345,000 | 1,796,000 |
Settlement loss | 83,000 | 298,000 | 298,000 |
Net periodic pension cost | 3,987,000 | 4,996,000 | 3,153,000 |
Non-cash settlement charges | 100,000 | 300,000 | 300,000 |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] | ' | ' | ' |
Discount Rate | 4.60% | 5.00% | 5.70% |
Rate of Increase in Compensation Levels | 3.50% | 3.50% | 3.90% |
Expected Long-term Rate of Return | 5.10% | 5.50% | 8.00% |
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] | ' | ' | ' |
Discount Rate | 5.00% | 4.60% | ' |
Rate of increase in compensation levels | 3.00% | 3.50% | ' |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Benefit Obligation | 70,210,000 | 69,942,000 | ' |
Defined Benefit Plan, Service Cost | 2,086,000 | 2,171,000 | 2,211,000 |
Defined Benefit Plan, Interest Cost | 3,041,000 | 3,292,000 | 3,496,000 |
Change in pension benefit obligation b Benefits and Settlements Paid | -5,035,000 | -6,437,000 | ' |
Actuarial loss (gain) | -5,424,000 | 1,242,000 | ' |
Defined Benefit Plan, Benefit Obligation | 64,878,000 | 70,210,000 | 69,942,000 |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 59,376,000 | 58,662,000 | ' |
Defined Benefit Plan, Actual Return on Plan Assets | 1,379,000 | 5,969,000 | ' |
Defined Benefit Plan, Contributions by Employer | 609,000 | 1,182,000 | ' |
Change in Plan Assets b Benefit and Settlements Paid | -5,035,000 | -6,437,000 | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 56,329,000 | 59,376,000 | 58,662,000 |
Defined Benefit Plan, Funded Status of Plan [Abstract] | ' | ' | ' |
Defined Benefit Plan, Funded Status of Plan | -8,549,000 | -10,834,000 | ' |
Defined Benefit Plan, Amounts Recognized in Balance Sheet [Abstract] | ' | ' | ' |
Noncurrent Assets | 0 | 0 | ' |
Current Liabilities | -340,000 | -361,000 | ' |
Noncurrent Liabilities | -8,209,000 | -10,473,000 | ' |
Net Amount Recognized | -8,549,000 | -10,834,000 | ' |
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] | ' | ' | ' |
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Transition Assets (Obligations), before Tax | 0 | -12,000 | ' |
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), before Tax | -56,000 | -90,000 | ' |
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Gains (Losses), before Tax | -14,124,000 | -19,808,000 | ' |
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax | -14,068,000 | -19,730,000 | ' |
Pension and Other Postretirement Benefit Plans, Amounts that Will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year | 1,200,000 | ' | ' |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] | ' | ' | ' |
2014 | 5,242,000 | ' | ' |
2015 | 5,435,000 | ' | ' |
2016 | 5,438,000 | ' | ' |
2017 | 5,334,000 | ' | ' |
2018 | 5,283,000 | ' | ' |
2019 - 2023 | 25,409,000 | ' | ' |
Defined Benefit Plan, Assets, Target Allocations [Abstract] | ' | ' | ' |
Target Allocation Percentage of Assets, Liability Hedging Assets | 80.00% | ' | ' |
Target Allocation Percentage of Assets, Return Seeking Assets | 20.00% | ' | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 56,329,000 | 59,376,000 | 58,662,000 |
Defined Contribution Plan, Cost Recognized | 5,700,000 | 5,600,000 | 5,200,000 |
Deferred Compensation Liability, Classified, Noncurrent | 21,400,000 | 21,200,000 | ' |
Supplemental Employee Retirement Plans, Defined Benefit [Member] | ' | ' | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation | 5,154,000 | 6,259,000 | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation | 4,643,000 | 5,080,000 | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 59,376,000 | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 56,329,000 | ' | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Projected Benefit Obligation | 59,724,000 | 63,951,000 | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation | 54,635,000 | 57,224,000 | ' |
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets | 56,329,000 | 59,376,000 | ' |
Defined Benefit Plans, Estimated Future Employer Contributions in Next Fiscal Year | 0 | ' | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 56,329,000 | ' | ' |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 1 [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 2 [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 54,911,000 | 58,555,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 54,911,000 | 58,555,000 | ' |
Pension Plans, Defined Benefit [Member] | Fair Value, Inputs, Level 3 [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | Cash and Cash Equivalents [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,418,000 | 821,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | Long Credit [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 44,239,000 | 30,924,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 44,239,000 | 30,924,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 44,239,000 | 30,924,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 44,239,000 | 30,924,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | High Yield [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,629,000 | 3,074,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,629,000 | 3,074,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,629,000 | 3,074,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,629,000 | 3,074,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | Intermediate Credit [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8,000 | 14,878,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8,000 | 14,878,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8,000 | 14,878,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 8,000 | 14,878,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | Global Real Estate [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,623,000 | 3,244,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,623,000 | 3,244,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,623,000 | 3,244,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,623,000 | 3,244,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | International Equities [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,172,000 | 2,643,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,172,000 | 2,643,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,172,000 | 2,643,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,172,000 | 2,643,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | U.S. Equity Index [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,165,000 | 2,538,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,165,000 | 2,538,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,165,000 | 2,538,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 2,165,000 | 2,538,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Pension Plans, Defined Benefit [Member] | U.S. Small Cap [Member] | ' | ' | ' |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,075,000 | 1,254,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,075,000 | 1,254,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,075,000 | 1,254,000 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 1,075,000 | 1,254,000 | ' |
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] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | 0 | 0 | ' |
Defined Benefit Plan, Information about Plan Assets [Abstract] | ' | ' | ' |
Defined Benefit Plan, Fair Value of Plan Assets | $0 | $0 | ' |