Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details 1)

v3.10.0.1
Summary of Significant Accounting Policies (Details 1) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2018
Jun. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Revenues $ 1,522,174 $ 1,344,103 $ 2,815,577 $ 2,494,884
North America        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Revenues 851,569 769,368 1,726,748 1,620,039
Europe        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Revenues 432,296 419,944 463,366 446,106
Asia-Pacific        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Revenues 153,673 55,514 421,391 188,944
Other        
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]        
Revenues $ 84,636 $ 99,277 $ 204,072 $ 239,795