Other Noncurrent Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Other Noncurrent Liabilities
Non-qualified deferred compensation liabilities	$ 76,255	$ 57,551
Deferred consideration	37,193
Contingent consideration and compensation liabilities	13,218
Other	13,882	14,108
Total	$ 140,548	$ 71,659