Debt Instrument, Amount Of Principal Repurchased

No definition available.

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Period Type:	duration

- Definition

Debt Instrument, Convertible, Measurement Period

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Convertible, Threshold Consecutive Trading Days, Sale Price Per Share

+ References

No definition available.

+ Details

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- Definition

The maximum leverage ratio required by the debt agreement. The leverage ratio is the total debt divided by consolidated EBITDA.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Covenant Maximum Senior Secured Leverage Ratio

+ References

No definition available.

+ Details

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- Definition

The minimum interest coverage ratio required by the debt agreement. The interest coverage ratio is used to determine how easily a company can pay interest on outstanding debt. The interest coverage ratio is calculated by dividing a company's earnings before interest and taxes (EBIT) of one period by the company's interest expenses of the same period.

+ References

No definition available.

+ Details

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- Definition

Debt Instrument, Event Of Default, Amount Of Indebtedness

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Debt Instrument, Threshold Percentage of Sales Price Per Share

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The price per share of the conversion feature embedded in the debt instrument.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031898-161870

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

+ References

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- Definition

Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

+ References

No definition available.

+ Details

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- Definition

Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature.

+ References

No definition available.

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 6
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+ Details

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Period Type:	instant

- Definition

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

+ References

+ Details

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Period Type:	instant

- 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.

+ Details

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Period Type:	duration

- Definition

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

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
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Balance Type:	debit
Period Type:	duration

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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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Balance Type:	credit
Period Type:	instant

- 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.

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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- Definition

The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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- Details

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- Details

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- Details

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Long-term Debt - Narrative (Details)		3 Months Ended		15 Months Ended
Long-term Debt - Narrative (Details)	Jan. 30, 2018 USD ($) day $ / shares	Mar. 31, 2020 USD ($)	Mar. 31, 2019 USD ($)	Mar. 31, 2020 USD ($)	Jan. 12, 2018 USD ($)
Debt Instrument [Line Items]
Repayments of convertible debt		$ 4,737,000	$ 0
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity		350,000,000.0		$ 350,000,000.0
Long-term line of credit		71,700,000		71,700,000
Letters of credit outstanding		19,100,000		19,100,000
Remaining borrowing capacity		$ 107,600,000		107,600,000
Minimum interest coverage ratio		3.0
Maximum senior secured leverage ratio		2.25
Maximum leverage ratio		3.75
Letter of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 50,000,000.0		$ 50,000,000.0
Unsecured Debt
Debt Instrument [Line Items]
Stated interest rate					2.50%
Debt instrument, face amount					$ 25,000,000.0
1.5% Convertible Unsecured Senior Notes
Debt Instrument [Line Items]
Stated interest rate		1.50%		1.50%
1.5% Convertible Unsecured Senior Notes \| Convertible Debt
Debt Instrument [Line Items]
Stated interest rate	1.50%
Debt instrument, face amount	$ 200,000,000
Debt Instrument, amount repurchased		$ 5,700,000		$ 13,500,000
Repayments of convertible debt		4,700,000		$ 11,500,000
Effective interest rate percentage	6.00%
Interest expense		2,500,000	2,500,000
Interest expense, contractual interest		$ 700,000	$ 800,000
Conversion ratio	0.0222748
Conversion price (in dollars per share) \| $ / shares	$ 44.89
Percentage of conversion price	130.00%
Threshold trading days \| day	20
Threshold consecutive trading days \| day	30
Amount of indebtedness in event of default	$ 40,000,000.0
Threshold consecutive trading days, sale price per share \| day	5
Measurement period \| day	5
Percentage of sales price per share	98.00%
Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage		0.25%
Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Commitment fee percentage		0.50%
London Interbank Offered Rate (LIBOR) \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		1.75%
London Interbank Offered Rate (LIBOR) \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		3.00%
Base Rate \| Minimum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		0.75%
Base Rate \| Maximum \| Revolving Credit Facility
Debt Instrument [Line Items]
Basis spread on variable rate		2.00%