Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net earnings	$ 29,420	$ 56,185
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	13,213	4,778
Navitor investment R&D expense	15,000	0
Amortization of deferred financing costs and debt discount	8,632	8,179
Realized gains from sales of marketable securities	(219)	(3,316)
Amortization of premium/discount on marketable securities	(2,371)	984
Change in fair value of contingent consideration	(7,730)	0
Other noncash adjustments, net	(651)	359
Share-based compensation expense	9,847	8,950
Deferred income tax provision	(2,046)	(3,062)
Changes in operating assets and liabilities:
Accounts receivable	3,605	(20,431)
Inventories	(7,950)	1,955
Prepaid expenses and other assets	(18,003)	(5,943)
Accrued product returns and rebates	47,406	28,298
Accounts payable and other liabilities	(5,679)	23,931
Net cash provided by operating activities	82,474	100,867
Cash flows from investing activities
Acquisition of USWM, net of cash acquired	(950)	(297,200)
Investment in Navitor Pharmaceuticals, Inc.	0	(15,000)
Purchases of marketable securities	(233,272)	(15,382)
Sales and maturities of marketable securities	83,844	257,936
Purchases of property and equipment	(1,508)	(3,072)
Deferred legal fees	(453)	(24)
Net cash used in investing activities	(152,339)	(72,742)
Cash flows from financing activities
Proceeds from issuance of common stock	4,996	1,469
Net cash provided by financing activities	4,996	1,469
Net change in cash and cash equivalents	(64,869)	29,594
Cash and cash equivalents at beginning of year	288,640	181,381
Cash and cash equivalents at end of period	223,771	210,975
Supplemental cash flow information
Cash paid for interest on convertible notes	1,258	1,258
Cash paid for income taxes	20,696	607
Cash paid for operating leases	4,036	1,991
Noncash investing and financing activities
Contingent consideration liability accrued in USWM Acquisition	0	115,700
Lease assets obtained for new leases	284	24,738
Deferred legal fees and fixed assets included in accounts payable and accrued expenses	$ 0	$ 365