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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Goodwill and Intangible Assets Disclosure [Abstract]        
Amortization of intangible assets $ 17,552 $ 10,901 $ 33,279 $ 22,091
Amortization income from unfavorable lease commitments     $ 0 $ 277