XML 58 R86.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Commitments & Contingencies - Future Purchase Commitments (Detail)
Dec. 31, 2019
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2020 $ 39,492,000
2021 18,668,000
2022 11,415,000
2023 3,331,000
2024 0
Unconditional purchase obligations over next six years $ 72,906,000