Fair Value Measurements - Summary of Non-Recurring Fair Value Measurement (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets, Net Carrying Value	$ 1,379,546	$ 1,441,308
Other intangible assets, Total Impairment Charges	89,787
Fair Value Measurements, Non-recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets, Net Carrying Value	14,753
Other intangible assets, Total Impairment Charges	89,787
Fair Value Measurements, Non-recurring [Member] | Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other intangible assets, Fair Value Measured and Recorded Using	$ 14,753