11. Commitments (Tables)

6 Months Ended

Jun. 30, 2019

	Six Months Ended June 30,
	2019
Operating cash flow information:
Cash paid for amounts included in the measurement of lease liabilities	$	6,201
Non-cash activity:
Right-of-use assets obtained in exchange for lease obligations	$	43,330

	Balance Sheet Classification	June 30, 2019
Right-of-use assets	Other assets	$	33,152
Current lease liabilities	Accrued expenses and other current liabilities	$	26,875
Non-current lease liabilities	Other liabilities	$	6,277