Annual report pursuant to Section 13 and 15(d)

Supplemental Cash Flow Information (Detail Textuals)

v3.10.0.1
Supplemental Cash Flow Information (Detail Textuals) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Supplemental Cash Flow Information [Abstract]      
Non-cash investing activity in connection with property and equipment $ 39,700 $ 20,000 $ 26,700
Net foreign currency adjustments 5,537    
Non-cash investing activities in connection with capital leases   13,300  
Income tax paid 10,000 11,700 8,800
Interest and related fees, net of capitalized interest $ 350,400 $ 284,900 $ 269,500