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Credit and Other Debt Agreements - Summary of Corporate and Other Debt (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Premium Financing Debt Facility [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payments of interest and principal, expiry date | Oct. 31, 2026 | Oct. 31, 2026
Fixed Rate of 4.60%, Balloon Due December 15, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.60% | 4.60%
Periodic payments of interest and principal, expiry date | Dec. 15, 2027 | Dec. 15, 2027
Fixed Rate of 4.85%, Balloon Due December 15, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.85% | 4.85%
Periodic payments of interest and principal, expiry date | Dec. 15, 2029 | Dec. 15, 2029
Fixed Rate of 2.40%, Balloon Due November 9, 2031 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 2.40% | 2.40%
Periodic payments of interest and principal, expiry date | Nov. 09, 2031 | Nov. 09, 2031
Fixed Rate of 5.00%, Balloon Due February 15, 2032 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.00% | 5.00%
Periodic payments of interest and principal, expiry date | Feb. 15, 2032 | Feb. 15, 2032
Fixed Rate of 5.50%, Balloon Due March 2, 2033 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.50% | 5.50%
Periodic payments of interest and principal, expiry date | Mar. 02, 2033 | Mar. 02, 2033
Fixed Rate of 6.50%, Balloon due February 15, 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 6.50% | 6.50%
Periodic payments of interest and principal, expiry date | Feb. 15, 2034 | Feb. 15, 2034
Fixed Rate of 5.45%, Balloon Due July 15, 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.45% | 5.45%
Periodic payments of interest and principal, expiry date | Jul. 15, 2034 | Jul. 15, 2034
Fixed Rate of 5.15%, Balloon Due February 15, 2035 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.15% | 5.15%
Periodic payments of interest and principal, expiry date | Feb. 15, 2035 | Feb. 15, 2035
Fixed Rate of 3.50%, Balloon Due May 20, 2051 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.50% | 3.50%
Periodic payments of interest and principal, expiry date | May 20, 2051 | May 20, 2051
Fixed Rate of 3.05%, Balloon Due March 9, 2052 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.05% | 3.05%
Periodic payments of interest and principal, expiry date | Mar. 09, 2052 | Mar. 09, 2052
Fixed Rate of 5.75%, Balloon Due March 2, 2053 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.75% | 5.75%
Periodic payments of interest and principal, expiry date | Mar. 02, 2053 | Mar. 02, 2053
Fixed Rate of 6.75%, Balloon Due February 15, 2054 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 6.75% | 6.75%
Periodic payments of interest and principal, expiry date | Feb. 15, 2054 | Feb. 15, 2054
Fixed Rate of 5.75%, Balloon Due July 15, 2054 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.75% | 5.75%
Periodic payments of interest and principal, expiry date | Jul. 15, 2054 | Jul. 15, 2054
Fixed Rate of 5.55%, Balloon Due February 15, 2055 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.55% | 5.55%
Periodic payments of interest and principal, expiry date | Feb. 15, 2055 | Feb. 15, 2055
Fixed Rate of 4.72%, Balloon due February 13, 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.72% | 4.72%
Periodic payments of interest and principal, expiry date | Feb. 13, 2024 | Feb. 13, 2024
Fixed Rate of 4.58%, Balloon Due February 27, 2024 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.58% | 4.58%
Periodic payments of interest and principal, expiry date | Feb. 27, 2024 | Feb. 27, 2024
Fixed Rate of 4.31%, Balloon Due June 24, 2025 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.31% | 4.31%
Periodic payments of interest and principal, expiry date | Jun. 24, 2025 | Jun. 24, 2025
Fixed Rate of 4.85%, Balloon due February 13, 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.85% | 4.85%
Periodic payments of interest and principal, expiry date | Feb. 13, 2026 | Feb. 13, 2026
Fixed Rate of 4.73%, Balloon Due February 27, 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.73% | 4.73%
Periodic payments of interest and principal, expiry date | Feb. 27, 2026 | Feb. 27, 2026
Fixed Rate of 4.40%, Balloon Due June 2, 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.40% | 4.40%
Periodic payments of interest and principal, expiry date | Jun. 02, 2026 | Jun. 02, 2026
Fixed Rate of 4.36%, Balloon Due June 24, 2026 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.36% | 4.36%
Periodic payments of interest and principal, expiry date | Jun. 24, 2026 | Jun. 24, 2026
Fixed Rate of 3.75%, Balloon Due January 30, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.75% | 3.75%
Periodic payments of interest and principal, expiry date | Jan. 30, 2027 | Jan. 30, 2027
Fixed Rate of 4.09%, Balloon Due June 27, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.09% | 4.09%
Periodic payments of interest and principal, expiry date | Jun. 27, 2027 | Jun. 27, 2027
Fixed Rate of 4.09%, Balloon Due August 2, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.09% | 4.09%
Periodic payments of interest and principal, expiry date | Aug. 02, 2027 | Aug. 02, 2027
Fixed Rate of 4.14%, Balloon Due August 4, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.14% | 4.14%
Periodic payments of interest and principal, expiry date | Aug. 04, 2027 | Aug. 04, 2027
Fixed Rate of 3.46%, Balloon Due December 1, 2027 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.46% | 3.46%
Periodic payments of interest and principal, expiry date | Dec. 01, 2027 | Dec. 01, 2027
Fixed Rate of 4.55%, Balloon Due June 2, 2028 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.55% | 4.55%
Periodic payments of interest and principal, expiry date | Jun. 02, 2028 | Jun. 02, 2028
Fixed Rate of 4.34%, Balloon due June 13, 2028 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.34% | 4.34%
Periodic payments of interest and principal, expiry date | Jun. 13, 2028 | Jun. 13, 2028
Fixed Rate of 5.04%, Balloon due February 13, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.04% | 5.04%
Periodic payments of interest and principal, expiry date | Feb. 13, 2029 | Feb. 13, 2029
Fixed Rate of 4.98%, Balloon Due February 27, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.98% | 4.98%
Periodic payments of interest and principal, expiry date | Feb. 27, 2029 | Feb. 27, 2029
Fixed Rate of 4.19%, Balloon Due June 27, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.19% | 4.19%
Periodic payments of interest and principal, expiry date | Jun. 27, 2029 | Jun. 27, 2029
Fixed Rate of 4.19%, Balloon Due August 2, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.19% | 4.19%
Periodic payments of interest and principal, expiry date | Aug. 02, 2029 | Aug. 02, 2029
Fixed Rate of 3.48%, Balloon Due December 2, 2029 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.48% | 3.48%
Periodic payments of interest and principal, expiry date | Dec. 02, 2029 | Dec. 02, 2029
Fixed Rate of 3.99%, Balloon Due January 30, 2030 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 3.99% | 3.99%
Periodic payments of interest and principal, expiry date | Jan. 30, 2030 | Jan. 30, 2030
Fixed Rate of 4.44%, Balloon Due June 13, 2030 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.44% | 4.44%
Periodic payments of interest and principal, expiry date | Jun. 13, 2030 | Jun. 13, 2030
Fixed Rate of 5.14%, Balloon due March 13, 2031 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.14% | 5.14%
Periodic payments of interest and principal, expiry date | Mar. 13, 2031 | Mar. 13, 2031
Fixed Rate of 4.70%, Balloon Due June 2, 2031 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.70% | 4.70%
Periodic payments of interest and principal, expiry date | Jun. 02, 2031 | Jun. 02, 2031
Fixed Rate of 2.46%, Balloon Due May 5, 2036 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 2.46% | 2.46%
Periodic payments of interest and principal, expiry date | May 05, 2036 | May 05, 2036
Fixed Rate of 4.09%, Balloon Due January 30, 2032 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.09% | 4.09%
Periodic payments of interest and principal, expiry date | Jan. 30, 2032 | Jan. 30, 2032
Fixed Rate of 4.34%, Balloon Due June 27, 2032 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.34% | 4.34%
Periodic payments of interest and principal, expiry date | Jun. 27, 2032 | Jun. 27, 2032
Fixed Rate of 4.34%, Balloon Due August 2, 2032 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.34% | 4.34%
Periodic payments of interest and principal, expiry date | Aug. 02, 2032 | Aug. 02, 2032
Fixed Rate of 4.59%, Balloon due June 13, 2033 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.59% | 4.59%
Periodic payments of interest and principal, expiry date | Jun. 13, 2033 | Jun. 13, 2033
Fixed Rate of 5.29%, balloon due March 13, 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.29% | 5.29%
Periodic payments of interest and principal, expiry date | Mar. 13, 2034 | Mar. 13, 2034
Fixed Rate of 4.48%, Balloon Due June 12, 2034 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.48% | 4.48%
Periodic payments of interest and principal, expiry date | Jun. 12, 2034 | Jun. 12, 2034
Fixed Rate of 4.24%, Balloon Due January 30, 2035 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.24% | 4.24%
Periodic payments of interest and principal, expiry date | Jan. 30, 2035 | Jan. 30, 2035
Fixed Rate of 2.44%, Balloon Due February 10, 2036 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 2.44% | 2.44%
Periodic payments of interest and principal, expiry date | Feb. 10, 2036 | Feb. 10, 2036
Fixed Rate of 4.69%, Balloon Due June 13, 2038 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.69% | 4.69%
Periodic payments of interest and principal, expiry date | Jun. 13, 2038 | Jun. 13, 2038
Fixed Rate of 5.45%, balloon due March 13, 2039 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 5.45% | 5.45%
Periodic payments of interest and principal, expiry date | Mar. 13, 2039 | Mar. 13, 2039
Fixed Rate of 4.49%, Balloon Due January 30, 2040 [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 4.49% | 4.49%
Periodic payments of interest and principal, expiry date | Jan. 30, 2040 | Jan. 30, 2040
Prime or SOFR Plus up to 1.075%, Expires June 22, 2028 [Member] | Credit Agreement [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 1.075% | 1.075%
Periodic payments of interest and principal, expiry date | Jun. 22, 2028 | Jun. 22, 2028
Facility B [Member] | Interbank rates plus 1.400% Expires October 31, 2026 [Member] | Premium Financing Debt Facility [Member] | AUD Denominated Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 1.40% | 1.40%
Facility B [Member] | Interbank Rates Plus 1.850% Expires October 31, 2026 [Member] | Premium Financing Debt Facility [Member] | NZD Denominated Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 1.85% | 1.85%
Facility C and D [Member] | Interbank Rates Plus 0.830% Expires October 31, 2026 [Member] | Premium Financing Debt Facility [Member] | AUD Denominated Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 0.83% | 0.83%
Facility C and D [Member] | Interbank Rates Plus 0.990% Expires October 31, 2026 [Member] | Premium Financing Debt Facility [Member] | NZD Denominated Tranche [Member] |  |
Debt Instrument [Line Items] |  |
Periodic payment of interest | 0.99% | 0.99%

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