XML 142 R122.htm IDEA: XBRL DOCUMENT v3.10.0.1
Other Commitments and Contingencies Purchase Obligations (Details)
$ in Thousands
Dec. 31, 2018
USD ($)
Long-term Purchase Commitment [Line Items]  
Purchase Obligation, Due in Next Twelve Months $ 158,500
Purchase Obligation, Due in Second and Third Year 74,970
Purchase Obligation, Due in Fourth and Fifth Year 42,279
Purchase Obligation, Due after Fifth Year 129,019
Purchase Obligation $ 404,812