Leases - Balance Sheet Classification (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jan. 01, 2019
Leases [Abstract]
Operating lease assets	$ 32,009	$ 28,000
Finance lease assets	1,135
Total lease assets	33,144
Current operating lease liabilities	6,105
Current finance lease liabilities	287
Noncurrent operating lease liabilities	26,946
Noncurrent finance lease liabilities	829
Total lease liabilities	$ 34,167