OTHER COMPREHENSIVE INCOME AND ACCUMULATED OTHER COMPREHENSIVE LOSS - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,438,692	$ 1,301,965
Other comprehensive income before reclassifications	1,657	346
Amounts reclassified from other comprehensive income	2,802	14
Net other comprehensive income	4,459	360
Ending balance	1,349,729	1,546,986
Loss on Investment in Joint Venture
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(32,792)	(32,792)
Other comprehensive income before reclassifications	0	0
Amounts reclassified from other comprehensive income	0	0
Net other comprehensive income	0	0
Ending balance	(32,792)	(32,792)
Defined Benefit Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(3,520)	0
Other comprehensive income before reclassifications	0	0
Amounts reclassified from other comprehensive income	74	0
Net other comprehensive income	74	0
Ending balance	(3,446)	0
Unrealized Gains (Losses) from Debt Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	137	(421)
Other comprehensive income before reclassifications	1,317	346
Amounts reclassified from other comprehensive income	2,728	14
Net other comprehensive income	4,045	360
Ending balance	4,182	(61)
Foreign Currency Translation Adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(343)	0
Other comprehensive income before reclassifications	340	0
Amounts reclassified from other comprehensive income	0	0
Net other comprehensive income	340	0
Ending balance	(3)	0
Accumulated Other Comprehensive Loss
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(36,518)	(33,213)
Net other comprehensive income	4,459	360
Ending balance	$ (32,059)	$ (32,853)