Commitments and Contingencies (Tables)
|12 Months Ended|
Dec. 31, 2017
|Commitments and Contingencies Disclosure [Abstract]|
|Schedule of Contractual Obligations||
At December 31, 2017, contractual obligations for long-term operating leases and purchase obligations are as follows (in thousands):
Tabular disclosure of the aggregate amount of payments due on known contractual obligations for the five years following the date of the latest balance sheet and the combined aggregate amount of maturities of known contractual obligations.
Reference 1: http://www.xbrl.org/2003/role/presentationRef