Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Restricted Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows:

	September 30, 2018		December 31, 2017		September 30, 2017
	(in thousands)
Cash and cash equivalents	$	109,044	$	176,274	$	137,584
Current restricted cash included in other current assets	51		51		—
Long-term restricted cash	2,055		311,010		—
Total cash, cash equivalents, and restricted cash	$	111,150	$	487,335	$	137,584

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows:

	September 30, 2018		December 31, 2017		September 30, 2017
	(in thousands)
Cash and cash equivalents	$	109,044	$	176,274	$	137,584
Current restricted cash included in other current assets	51		51		—
Long-term restricted cash	2,055		311,010		—
Total cash, cash equivalents, and restricted cash	$	111,150	$	487,335	$	137,584