Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Lease expense and other information related to leases

The components of lease expense were as follows (in thousands):

	For the Year Ended December 31,
	2018			2017			2016
Finance lease cost:
Amortization of right-of-use assets	$	11,884		$	11,029		$	11,252
Interest on lease liabilities	676			640			889
Operating lease cost	10,467			10,177			9,380
Short-term lease cost	732			493			1,103
Variable lease cost	3,112			2,502			2,173
Sublease income	(572		)	(24		)	(79		)
Total lease cost	$	26,299		$	24,817		$	24,718

Other information related to leases was as follows (in thousands):

	For the Year Ended December 31,
	2018			2017			2016
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$	10,765		$	10,027		$	8,345
Operating cash flows from finance leases	482			591			885
Financing cash flows from finance leases	9,220			10,032			12,968
Right-of-use assets obtained in exchange for lease obligations:
Operating leases	3,411			7,276			5,913
Finance leases	15,370			862			14,875
Weighted average remaining lease term (years):
Operating leases	3.43			3.99			4.28
Finance leases	3.37			2.06			2.83
Weighted average discount rate:
Operating leases	4.3		%	4.1		%	3.9		%
Finance leases	4.3		%	3.1		%	3.0		%

Future minimum lease payments under non-cancellable leases

Future minimum lease payments under non-cancellable leases as of December 31, 2018 were as follows (in thousands):

	Operating Leases			Sublease Income		Net Operating Leases			Finance leases
2019	$	9,494		$	774	$	8,720		$	9,742
2020	6,224			787		5,437			4,806
2021	4,194			639		3,555			3,103
2022	2,677			—		2,677			1,503
2023	1,774			—		1,774			57
Thereafter	25			—		25			949
Total future lease payments	24,388			2,200		22,188			20,160
Less: Amount representing interest	(1,602		)	—		(1,602		)	(975		)
Present value of future payments	22,786			2,200		20,586			19,185
Less: Short term leases not recorded as a liability	(748		)	—		(748		)	—
Revised Present value of future payments	22,038			2,200		19,838			19,185
Less: Current portion	(7,857		)	—		(7,857		)	(9,193		)
Long term portion	$	14,181		$	2,200	$	11,981		$	9,992

Future minimum lease payments under non-cancellable leases

Future minimum lease payments under non-cancellable leases as of December 31, 2018 were as follows (in thousands):

	Operating Leases			Sublease Income		Net Operating Leases			Finance leases
2019	$	9,494		$	774	$	8,720		$	9,742
2020	6,224			787		5,437			4,806
2021	4,194			639		3,555			3,103
2022	2,677			—		2,677			1,503
2023	1,774			—		1,774			57
Thereafter	25			—		25			949
Total future lease payments	24,388			2,200		22,188			20,160
Less: Amount representing interest	(1,602		)	—		(1,602		)	(975		)
Present value of future payments	22,786			2,200		20,586			19,185
Less: Short term leases not recorded as a liability	(748		)	—		(748		)	—
Revised Present value of future payments	22,038			2,200		19,838			19,185
Less: Current portion	(7,857		)	—		(7,857		)	(9,193		)
Long term portion	$	14,181		$	2,200	$	11,981		$	9,992