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Line Of Credit Facility, Collateral, Capital Stock, Percent

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Line of Credit Facility, Required Maximum Leverage Ratio

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Line of Credit Facility, Required Minimum Leverage Ratio

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Number of quarters

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

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No definition available.

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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.

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No definition available.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

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Amount of investment in equity method investee and investment in and advance to affiliate.

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- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
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-SubTopic 20
-Section 50
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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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Short-Term and Long-Term Debt, Including Finance Leases - Credit Facility (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) quarter	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 18, 2020 USD ($)
Debt Instrument [Line Items]
Debt instrument, interest period	1 month
Line of credit facility, collateral, capital stock, percent	100.00%
Number of quarters \| quarter	4
Short-term borrowings	$ 1,837,000	$ 28,546,000
Interest expense, debt	8,187,000	11,519,000	$ 11,399,000
Interest paid	$ 7,152,000	10,470,000	$ 10,381,000
Maximum
Debt Instrument [Line Items]
Lessee leasing arrangements, finance leases, term of contract	60 months
Minimum
Debt Instrument [Line Items]
Lessee leasing arrangements, finance leases, term of contract	24 months
Letter of credit subcommitment
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	$ 100,000,000
Line of credit facility, remaining borrowing capacity	11,512,000
Credit Facility
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	450,000,000
Credit Facility	112,855,000	176,877,000
Line of credit facility, remaining borrowing capacity	325,653,000
Short-term borrowings	$ 1,570,000	$ 28,531,000
Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	1.00%
Credit Facility \| UK Borrower
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	$ 185,000,000
Credit Facility \| Canadian Borrower
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	75,000,000
Credit Facility \| Australian Borrower
Debt Instrument [Line Items]
Line of credit facility, current borrowing capacity	$ 32,500,000
Credit Facility \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	2.10%
Credit Facility \| Maximum \| London Interbank Offered Rate (LIBOR) \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	1.10%
Credit Facility \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	1.30%
Credit Facility \| Minimum \| London Interbank Offered Rate (LIBOR) \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (percent)	0.30%
Third Amendment To Credit Agreement \| Credit Facility \| Maximum
Debt Instrument [Line Items]
Investments permitted under the Credit Facility				$ 5,000,000
2015 Amendment to Credit Agreement \| Credit Facility \| Wells Fargo Bank, National Association
Debt Instrument [Line Items]
Debt instrument, maximum senior secured leverage ratio	3.25
Debt instrument, maximum total leverage ratio	4.25
Debt instrument, covenant, coverage ratio	1.10