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Other Long-Term Liabilities
 3 Months Ended
Mar. 31, 2019
Other Liabilities Disclosure [Abstract]  
Other Long-Term Liabilities Other Long-Term Liabilities 
Other long-term liabilities consisted of the following (in thousands):
March 31, 2019December 31, 2018
Deferred compensation plan $27,343 $25,672 
Supplemental executive retirement plan15,250 15,035 
Operating lease liabilities11,452 — 
Other long-term liabilities1,294 2,802 
Total Other long-term liabilities$55,339 $43,509