Credit Agreement Expiration Trigger Requirement, Convertible Note Outstanding Balance

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Represents the charge against earnings during the period for commitment fees and debt issuance expenses.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- 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.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Long Term Debt (Narrative) (Details) - USD ($)		12 Months Ended
Long Term Debt (Narrative) (Details) - USD ($)	Feb. 07, 2019	Dec. 31, 2018	Dec. 31, 2016	Jan. 29, 2019	Dec. 31, 2017	Jan. 04, 2016
Debt Instrument [Line Items]
Loss on early extinguishment of debt			$ 254,000
Long-term debt outstanding		$ 456,900,000			$ 486,443,000
Interest rate at period end (percent)		4.405%
Debt Instrument, Financing Costs Expensed			$ 2,700,000
Revolving Line of Credit [Member]
Debt Instrument [Line Items]
Long-term debt outstanding		$ 312,000,000			327,000,000
Line of credit facility, available borrowing capacity		210,000,000
Revolving Line of Credit [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity						$ 525,000,000.0
Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding		3,000,000
Term Loan Facility [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross		144,400,000
Long-term debt outstanding		144,064,000			157,033,000
Term Loan Facility [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount						$ 175,000,000.0
Mortgages Notes [Member]
Debt Instrument [Line Items]
Long-term debt outstanding		$ 836,000			$ 2,410,000
Debt interest rate (percent)		8.25%
Federal Funds Effective Swap Rate [Member] \| Long-term Debt [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)		0.50%
Eurodollar [Member] \| Long-term Debt [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)		1.00%
Subsequent Event [Member] \| Revolving Line of Credit [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 585,000,000
Subsequent Event [Member] \| Convertible Notes Payable [Member] \| 2.625 Percent Convertible Notes Due 2024 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount				$ 345,000,000
Debt interest rate (percent)				2.625%
Credit Agreement Expiration Trigger Requirement, Convertible Note Outstanding Balance	150,000,000
Subsequent Event [Member] \| Term Loan Facility [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 265,000,000
Subsequent Event [Member] \| Federal Funds Effective Swap Rate [Member] \| Long-term Debt [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	0.50%
Subsequent Event [Member] \| Eurodollar [Member] \| Long-term Debt [Member] \| Amended and Restated Senior Credit Agreement [Member]
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	1.00%