Long-Term Debt (Narrative)(Details) $ in Thousands |
12 Months Ended |
|---|---|
|
Dec. 31, 2017
USD ($)
| |
| Credit facility maximum borrowing capacity | $ 25,000 |
| Long-term debt | $ 0 |
| Credit facility maturity date | Oct. 30, 2020 |
| Line of Credit Facility Additional Borrowing Capacity | $ 25,000 |
| Revolving Credit Facility [Member] | |
| Letters of credit borrowing capacity | $ 5,000 |
| Debt Instrument, Effective Period | 10 days |
| Line of credit facility, covenant lease adjusted leverage ratio | 3.50 |
| Revolving Credit Facility [Member] | Federal Funds Rate [Member] | |
| Basis spread on variable rate | 0.50% |
| Revolving Credit Facility [Member] | Base Rate [Member] | |
| Basis spread on variable rate | 1.00% |
| X | ||||||||||
- Definition Debt Instrument, Effective Period No definition available.
|
| X | ||||||||||
- Definition Letters of credit borrowing capacity No definition available.
|
| X | ||||||||||
- Definition Maximum additional borrowing capacity under the credit facility. No definition available.
|
| X | ||||||||||
- Definition Line of credit facility, covenant lease adjusted leverage ratio No definition available.
|
| X | ||||||||||
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
|
| X | ||||||||||
- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|