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Percentage of principal amount of notes outstanding related to debt covenant.

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The amount of accrued interest on debt instrument for the period.

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Represents the ratio of consolidated adjusted earnings before interest, taxes, depreciation and amortization to interest expense, which is necessary to be maintained under the terms of the senior credit facilities' covenants.

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Represents the ratio of consolidated total debt to consolidated adjusted earnings before, interest, taxes, depreciation and amortization allowed under the terms of the senior credit facilities' covenants.

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Percent of debt discount.

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Issuance price of debt instrument as a percent of principal amount.

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The amount of mandatory prepayments of debt instrument.

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Percentage of notes issued on par value.

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

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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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Incremental percentage increase (decrease) in the stated rate on a debt instrument.

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

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Amount of the required periodic payments applied to principal.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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

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

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt (Additional Information) (Details) - USD ($) $ in Thousands								1 Months Ended	3 Months Ended						6 Months Ended
	Jan. 26, 2024	Nov. 22, 2022	Sep. 22, 2022	Apr. 11, 2022	Mar. 11, 2022	Aug. 12, 2021	Mar. 01, 2021	Jun. 30, 2022	Mar. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Line of Credit Facility [Line Items]
Repayment of long-term debt																$ 150,861
Gain on extinguishment of debt										$ 0	$ 0				$ 0	71
Long-term debt, gross										708,283					708,283		$ 708,283
Letters of credit outstanding										76,200					76,200
Surety Bond [Member]
Line of Credit Facility [Line Items]
Guarantor Obligations, Current Carrying Value										41,000					41,000
Revolver
Line of Credit Facility [Line Items]
Maximum borrowing capacity						$ 400,000
Letters of credit outstanding										157,900					157,900
Long-term Line of Credit										0	$ 0				$ 0	0
Term											5 years
Revolver \| Alternate Base Rate \| Minimum
Line of Credit Facility [Line Items]
Basic spread rate															2.75%
Revolver \| Alternate Base Rate \| Maximum
Line of Credit Facility [Line Items]
Basic spread rate															3.25%
Revolver \| SOFR
Line of Credit Facility [Line Items]
Basic spread rate															0.75%
Revolver \| SOFR \| Minimum
Line of Credit Facility [Line Items]
Basic spread rate															3.75%
Revolver \| SOFR \| Maximum
Line of Credit Facility [Line Items]
Basic spread rate															4.25%
Walden Title IV Letter Of Credit
Line of Credit Facility [Line Items]
Letters of credit outstanding										84,000					$ 84,000
Commitment fee percentage															0.25%
Undrawn amount on letters of credit										165,900					$ 165,900
Senior Secured Notes Due 2028 And Term B Loan
Line of Credit Facility [Line Items]
Term											7 years
Cap percentage															20.00%
Senior Secured Notes Due 2028 And Term B Loan \| Scenario, Plan
Line of Credit Facility [Line Items]
Total net leverage ratio									3.25%						4.00%
Senior Secured Notes Due 2028
Line of Credit Facility [Line Items]
Debt instrument, face amount							$ 800,000
Fixed interest rate							5.50%
Repayment of long-term debt				$ 373,300				$ 20,800				$ 900	$ 394,100
Gain on extinguishment of debt																100
Long-term debt, gross										404,950					$ 404,950		404,950
Percentage of notes issued on par value							100.00%
Redemption price, percentage of principal amount redeemed				100.00%			100.00%	90.00%				92.00%
Debt covenant, percentage of principal amount of notes outstanding							25.00%
Debt Issuance Costs Write-off										0	$ 0				0	15
Senior Secured Notes Due 2028 \| Accrued Liabilities
Line of Credit Facility [Line Items]
Debt Instrument, Accrued Interest										$ 7,400					$ 7,400		7,400
Senior Secured Notes Due 2028 \| 2024
Line of Credit Facility [Line Items]
Redemption price, percentage of principal amount redeemed							102.75%
Senior Secured Notes Due 2028 \| 2025
Line of Credit Facility [Line Items]
Redemption price, percentage of principal amount redeemed							101.375%
Senior Secured Notes Due 2028 \| 2026
Line of Credit Facility [Line Items]
Redemption price, percentage of principal amount redeemed							100.00%
Senior Secured Notes Due 2028 \| Prior to March 1,2024
Line of Credit Facility [Line Items]
Redemption price percentage							105.50%
Senior Secured Notes Due 2028 \| Maximum \| Prior to March 1,2024
Line of Credit Facility [Line Items]
Redemption price, percentage of principal amount redeemed							40.00%
Term B Loan
Line of Credit Facility [Line Items]
Debt instrument, face amount						850,000
Fixed interest rate										9.47%					9.47%
Repayment of long-term debt		$ 50,000	$ 100,000		$ 396,700	$ 396,700
Long-term debt, gross										$ 303,333					$ 303,333		$ 303,333
Principal payment														$ 2,125
Debt Instrument, Issuance Price, Percent Of Principal Amount						99.00%
Debt Instrument, Issuance Discount, Percent						1.00%
Debt Issuance Costs Write-off										$ 0	$ 1,402				$ 0	$ 4,282
Asset sale or disposition period															1 year
Asset sale or disposition investments															$ 20,000
Mandatory prepayment terms															$ 0
Term B Loan \| Subsequent Event
Line of Credit Facility [Line Items]
Repayment of long-term debt	$ 50,000
Long-term debt, gross	$ 253,300
Reduction in margin interest rate	(0.50%)
Term B Loan \| Alternate Base Rate \| Minimum
Line of Credit Facility [Line Items]
Basic spread rate						3.00%
Term B Loan \| Alternate Base Rate \| Minimum \| Subsequent Event
Line of Credit Facility [Line Items]
Basic spread rate	2.50%
Term B Loan \| Alternate Base Rate \| Maximum
Line of Credit Facility [Line Items]
Basic spread rate						3.50%
Term B Loan \| Alternate Base Rate \| Maximum \| Subsequent Event
Line of Credit Facility [Line Items]
Basic spread rate	3.00%
Term B Loan \| Eurocurrency Rate \| Minimum
Line of Credit Facility [Line Items]
Basic spread rate						4.00%
Term B Loan \| Eurocurrency Rate \| Minimum \| Subsequent Event
Line of Credit Facility [Line Items]
Basic spread rate	3.50%
Term B Loan \| Eurocurrency Rate \| Maximum
Line of Credit Facility [Line Items]
Basic spread rate						4.50%
Term B Loan \| Eurocurrency Rate \| Maximum \| Subsequent Event
Line of Credit Facility [Line Items]
Basic spread rate	4.00%
Term B Loan \| SOFR
Line of Credit Facility [Line Items]
Basic spread rate						0.75%
Term B Loan \| SOFR \| Subsequent Event
Line of Credit Facility [Line Items]
Basic spread rate	0.75%