• Filing Date: 2020-03-06
  • Form Type: 10-K
  • Description: Annual report
v3.19.3.a.u2
Investments - Summary of Unaudited Financial Information and Unaudited Financial Position of Limited Partnerships (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Schedule Of Equity Method Investments [Line Items]                              
Total income $ 63,231 $ 59,979 $ 58,630 $ 60,634 $ 52,997 $ 61,743 $ 58,813 $ 57,739 $ 61,623 $ 47,490 $ 67,580 $ 67,713 $ 242,474 $ 231,292 $ 244,406
Limited Partnership [Member]                              
Schedule Of Equity Method Investments [Line Items]                              
Total income                         27,171 1,821,935 409,169
Total expenses                         139,252 146,079 105,281
Net (loss) income                         (112,081) 1,675,856 $ 303,888
Balance Sheet:                              
Total assets 6,850,913       6,689,792               6,850,913 6,689,792  
Total liabilities $ 549,562       $ 394,029               $ 549,562 $ 394,029