v2.4.0.8

Employee Benefit Plans (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 period | Dec. 31, 2012 | Dec. 31, 2011
Employee Benefit [Line Items] |  |  |
Defined Benefit Plan, Business Combinations and Acquisitions, Benefit Obligation | $ 3,398,000 | $ 0 |
Number of Look-back Period Under Employee Stock Purchase Plan | 2 |  |
Look-back Period Under Employee Stock Purchase Plan | 6 months |  |
Discount On Common Stock Under Employee Stock Purchase Plan, Percent | 10.00% |  |
Stock Issued During Period, Shares, Employee Stock Purchase Plans | 32,598 | 39,393 | 39,989
Stock Issued During Period, Value, Employee Stock Purchase Plan | 686,000 | 725,000 | 690,000
Shares Available For Purchase Under Employee Stock Purchase Plan | 575,912 |  |
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] |  |  |
Balance at beginning of year | 11,616,000 | 11,237,000 |
Change in actuarial loss | 2,212,000 | (80,000) |
Benefit expense | 1,880,000 | 1,017,000 |
Benefit payments | (2,683,000) | (558,000) |
Balance at end of year | 16,423,000 | 11,616,000 | 11,237,000
Defined Contribution Pension [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Service Period | 6 months |  |
Deferred Compensation Arrangement with Individual, Contribution To Plan By Employee, Percent Of Eligible Compensation | 75.00% |  |
Deferred Compensation Arrangement with Individual, Contribution Requirements, Matching Percent | 50.00% |  |
Deferred Compensation Arrangement with Individual, Employer Contribution | 1,900,000 | 1,400,000 | 1,200,000
Defined Contribution Pension [Member] | Minimum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Eligible Age | 18 |  |
Defined Contribution Pension [Member] | Maximum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Contribution Requirements, Percent Of Each Employee Compensation | 3.00% |  |
Deferred Profit Sharing [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Service Period | 6 months |  |
Deferred Compensation Arrangement with Individual, Contribution To Plan By Employee, Percent Of Eligible Compensation | 75.00% |  |
Deferred Compensation Arrangement with Individual, Contribution Requirements, Matching Percent | 50.00% |  |
Deferred Compensation Arrangement with Individual, Employer Contribution | 4,000,000 | 2,900,000 | 2,600,000
Deferred Profit Sharing [Member] | Minimum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Eligible Age | 18 |  |
Deferred Profit Sharing [Member] | Maximum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Contribution Requirements, Percent Of Each Employee Compensation | 3.00% |  |
ESP Plan [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date | 90.00% |  |
Unit Plans [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Recorded Liability | 4,700,000 | 4,700,000 |
Deferred Compensation Arrangement with Individual, Compensation Expense | 458,000 | 677,000 | 655,000
Unit Plans [Member] | Minimum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Vesting Period | 4 years |  |
Deferred Compensation Arrangement with Individual, Benefit Period | 5 years |  |
Unit Plans [Member] | Maximum [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Deferred Compensation Arrangement with Individual, Vesting Period | 10 years |  |
Deferred Compensation Arrangement with Individual, Benefit Period | 10 years |  |
SERP [Member] |  |  |
Employee Benefit [Line Items] |  |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 5.10% |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Normal Retirement Age | 65 |  |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Annual Cost Of Living Benefit Adjustment | 2.00% |  |
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract] |  |  |
2014 | 1,702,000 |  |
2015 | 975,000 |  |
2016 | 994,000 |  |
2017 | 1,088,000 |  |
2018 | 1,355,000 |  |
2019 through 2023 | 8,852,000 |  |
Total | $ 14,966,000 |  |

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