Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies - Future Minimum Lease Payments for both Continuing and Discontinued Operations (Detail)

v3.8.0.1
Commitments and Contingencies - Future Minimum Lease Payments for both Continuing and Discontinued Operations (Detail)
$ in Thousands
Dec. 31, 2017
USD ($)
Commitments And Contingencies Disclosure [Abstract]  
2018 $ 86,941
2019 73,080
2020 47,761
2021 35,636
2022 26,760
Thereafter 95,949
2018 (10,535)
2019 (8,828)
2020 (7,191)
2021 (5,827)
2022 (4,377)
Thereafter $ (10,982)