Lease Commitments - Supplemental Balance Sheet (Details) $ in Thousands	Sep. 30, 2019 USD ($)
Leases [Abstract]
Operating lease assets, net	$ 86,285
Finance lease assets	2,978
Total leased assets	89,263
Operating lease, liability, current	28,631
Finance lease, liability, current	0
Operating lease, liability, noncurrent	60,335
Finance lease, liability, noncurrent	5,063
Total lease liabilities	$ 94,029