Convertible Debt and Notes Payable - Term Loans, Other Notes Payable and Revolver (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 15, 2021	Mar. 24, 2021	Jan. 31, 2021	Sep. 30, 2020	Nov. 01, 2019	Jul. 01, 2019	Jun. 30, 2017
Debt and Capital Lease Obligations [Line Items]
Letter of credit, borrowing capacity		$ 320,000,000
Other Notes Payable		12,537,000	$ 72,505,000
Term Loan		435,147,000	0
The Military Mutual Ltd [Member]
Debt and Capital Lease Obligations [Line Items]
Other Receivables		$ 28,400,000
Morgan Stanley | Revolving Credit Facility
Debt and Capital Lease Obligations [Line Items]
Interest Expense, Debt, Excluding Amortization			300,000
Letter of credit, borrowing capacity				$ 25,000,000
Notes Payable to Banks
Debt and Capital Lease Obligations [Line Items]
Debt Instrument, Face Amount										$ 4,000,000	$ 28,200,000
Short-term Debt, Percentage Bearing Variable Interest Rate		3.75%
Interest Expense, Debt, Excluding Amortization			800,000	$ 1,800,000
Term Loan
Debt and Capital Lease Obligations [Line Items]
Term Loan		$ 435,147,000
Insurance Note
Debt and Capital Lease Obligations [Line Items]
Interest rate							2.01%
Debt Instrument, Periodic Payment, Principal		300,000
Other Notes Payable							$ 3,000,000
Corporate Debt
Debt and Capital Lease Obligations [Line Items]
Interest Expense, Debt, Excluding Amortization		$ 100,000	100,000
Interest rate		6.00%
Debt Instrument, Periodic Payment, Principal		$ 100,000
Other Long-term Debt		1,500,000							$ 2,600,000
Purple Protect Asset S-91
Debt and Capital Lease Obligations [Line Items]
Interest Expense, Debt, Excluding Amortization		$ 3,000,000	$ 1,200,000
Interest rate	5.80%	4.00%	6.07%
Other Notes Payable								$ 72,000,000
Debt Issuance Costs, Gross			$ 1,700,000
Repayments of Other Debt	$ 60,000,000
2028 Term Loan | Term Loan
Debt and Capital Lease Obligations [Line Items]
Debt Instrument, Face Amount					$ 450,000,000
Interest Expense, Debt, Excluding Amortization		$ 9,700,000
Debt Instrument, Additional amount issued					150,000,000
Interest rate						3.25%
Debt Issuance Costs, Gross					2,700,000	$ 6,600,000
Term Loan		$ 446,600,000
Unamortized discount					$ 1,500,000	$ 1,500,000
Debt Instrument, Interest Rate, Effective Percentage						4.46%
Debt Instrument, Original Amount						$ 300,000,000
Debt Instrument, Basis Spread on Variable Rate		2.25%
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed		1.00%
Spike Line
Debt and Capital Lease Obligations [Line Items]
Interest Expense, Debt, Excluding Amortization			$ 400,000
Maximum | Spike Line
Debt and Capital Lease Obligations [Line Items]
Line of Credit, Current		$ 70,000,000