Debt - Additional Information (Detail) - USD ($) $ in Thousands			1 Months Ended		3 Months Ended		12 Months Ended
	Oct. 11, 2023	Apr. 20, 2018	Apr. 30, 2021	Oct. 31, 2017	Dec. 31, 2023	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 01, 2023	Apr. 14, 2021	Apr. 30, 2013
Debt Instrument [Line Items]
Borrowings outstanding under credit facility					$ 0		$ 0
Revolving Credit Facility letters of credit outstanding					17,900		17,900
Total debt					1,106,691		1,106,691	$ 1,264,522
Debt Instrument outstanding balance					$ 1,106,691		1,106,691	1,264,522
Third party-fees and write-off of pro-rata portion of pre-existing loan costs							400
Expenses associated with debt repayments and refinancing transactions							$ 686	8,077	$ 56,279
Percentage of Senior Notes offer price in connection with change in control							101.00%
Net Discount							$ 700
Weighted Average Purchase Price					97.00%		97.00%
Combined Subsidiary Guarantors
Debt Instrument [Line Items]
Ownership percentage of subsidiaries							100.00%
Term Loan
Debt Instrument [Line Items]
Total debt					$ 125,000		$ 125,000
Non-Recourse Senior Secured Notes | Private Placement
Debt Instrument [Line Items]
Debt maturity date		Jan. 31, 2040
Debt Instrument outstanding balance					145,500		$ 145,500
Debt instrument, term		20 years
Aggregate principal amount		$ 159,500
Stated interest rate		4.43%
Expected project completion period		January 2020
Notes issuance costs		$ 3,400
Bank Credit Agreement | Term Loan
Debt Instrument [Line Items]
Current initial balance	$ 125,000
Senior Notes 4.75% Due 2027
Debt Instrument [Line Items]
Debt maturity date				Oct. 15, 2027			Oct. 31, 2027
Debt Instrument outstanding balance				$ 243,100	$ 243,068		$ 243,068	250,000
Aggregate principal amount				$ 250,000
Stated interest rate				4.75%	4.75%		4.75%
Debt instrument redemption percentage of par				100.00%
Debt instrument repurchase amount					$ 6,900		$ 6,900
Senior Notes 4.625% Due 2023
Debt Instrument [Line Items]
Debt Instrument outstanding balance					0		$ 0	$ 153,754		$ 153,800		$ 350,000
Stated interest rate								4.625%		4.625%		4.625%
Debt instrument redemption percentage of par								100.00%
Debt instrument repurchase amount								$ 196,200
Senior Notes 8.25% Due 2026
Debt Instrument [Line Items]
Debt maturity date			Apr. 15, 2026				Apr. 30, 2026
Debt Instrument outstanding balance					593,113		$ 593,113	$ 614,113
Aggregate principal amount					$ 593,100		$ 593,100		$ 675,000
Stated interest rate			8.25%		8.25%		8.25%	8.25%			8.25%
Debt instrument repurchase amount								$ 60,900
Expenses associated with debt repayments and refinancing transactions								1,200
Senior Notes 8.25% Due 2026 | Redemption Beginning on April 15, 2024
Debt Instrument [Line Items]
Debt instrument redemption percentage of par							104.125%
Debt instrument redemption beginning period							Apr. 15, 2024
Senior Notes 8.25% Due 2026 | Redemption Beginning on April 15, 2025
Debt Instrument [Line Items]
Debt instrument redemption percentage of par							100.00%
Debt instrument redemption beginning period							Apr. 15, 2025
Senior Notes 8.25%
Debt Instrument [Line Items]
Debt Instrument outstanding balance					$ 593,100		$ 593,100
Stated interest rate					8.25%		8.25%
Debt instrument repurchase amount					$ 21,000		$ 21,000
Senior Note 4.75%
Debt Instrument [Line Items]
Debt Instrument outstanding balance					$ 243,100		$ 243,100
Stated interest rate					4.75%		4.75%
Revolving Credit Facility
Debt Instrument [Line Items]
Sublimit swing line loans	25,000
Line of credit facility, remaining borrowing capacity					$ 257,100		$ 257,100
Sublimit for issuance of standby letters of credit					100,000		100,000
Revolving Credit Facility letters of credit outstanding					17,900		$ 17,900	$ 16,800
Bank Credit Facility [Member] | Base Rate
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate							2.25%
Bank Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate							3.25%
New Bank Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity	275,000
Bank Credit Facility Aggregate Principal Amount	$ 400,000
Debt maturity period	Oct. 31, 2028
Bank credit facility, aggregate principal amount of additional borrowing	$ 200,000
Bank credit facility, Consolidated EBITDA	50.00%
Percentage of commitment fee to unfunded balance							0.45%
Percentage of capital stock of foreign subsidiary secured by pledge under Revolving Credit Facilities	65.00%
Percentage of loan to value	50.00%
Net borrowings before transaction costs	$ 33,800
New Bank Credit Facility [Member] | Minimum
Debt Instrument [Line Items]
Fixed Charge Coverage Ratio	1.75
New Bank Credit Facility [Member] | Maximum
Debt Instrument [Line Items]
Total leverage ratio	4.5
Secured leverage ratio	2.5
Consolidated total leverage ratio	4.25
New Bank Credit Facility [Member] | Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate	1.75%
New Bank Credit Facility [Member] | Base Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate	3.50%
New Bank Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) | Minimum
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate	2.75%
New Bank Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) | Maximum
Debt Instrument [Line Items]
Debt instrument, percentage points added to reference rate	4.50%
Previous Bank Credit Facility
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity	$ 250,000
Bank Credit Facility Aggregate Principal Amount	$ 350,000
Debt maturity period	May 31, 2026
Write-off of loan costs					$ 1,000	$ 800
Previous Bank Credit Facility | Maximum
Debt Instrument [Line Items]
Net unrestricted cash and cash equivalents related to total leverage ratio	$ 100,000
Net unrestricted cash and cash equivalents related to consolidated secured leverage ratio	$ 100,000
Consolidated total leverage ratio	4
Previous Bank Credit Facility | Term Loan A Due in May 2026
Debt Instrument [Line Items]
Current initial balance	$ 100,000