Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Additional Cash Flow Information

Additional cash flow information was as follows:

	Three Months Ended March 31,
	2021		2020
Cash paid for interest	$	9,719	$	23,168
Cash paid for income taxes	—		—
Significant non-cash transactions:
Unsettled securities transactions	21,957		11,196
Right-of-use lease assets obtained in exchange for lessee operating lease liabilities	1,326		9,892
Treasury stock issued to 401(k) stock purchase plan	1,749		—