Leases (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Schedule of lease cost

Lease-related assets and liabilities as of June 30, 2019 are as follows ($000 omitted):

Assets:
Operating lease assets, net of accumulated amortization	102,134
Finance lease assets, net of accumulated depreciation	1,369
Total lease assets	103,503
Liabilities:
Operating lease liabilities	114,022
Finance lease liabilities	4,975
Total lease liabilities	118,997

Future minimum lease payments under non-cancellable operating lease

Other information related to operating and finance leases during the six months ended June 30, 2019 is as follows:

	Operating		Finance
Cash paid for amounts included in the measurement of lease liabilities ($000)	22,167		1,734
Lease assets obtained in exchange for lease obligations ($000)	33,419		—
Weighted average remaining lease term (years):	4.7		2.7
Weighted average discount rate	4.6	%	5.0	%

Future minimum lease payments under non-cancellable finance lease

Other information related to operating and finance leases during the six months ended June 30, 2019 is as follows:

	Operating		Finance
Cash paid for amounts included in the measurement of lease liabilities ($000)	22,167		1,734
Lease assets obtained in exchange for lease obligations ($000)	33,419		—
Weighted average remaining lease term (years):	4.7		2.7
Weighted average discount rate	4.6	%	5.0	%