Callon Petroleum Company Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Cover Page
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Summary of Significant Accounting Policies (Narrative) (Details)

v3.20.4

Summary of Significant Accounting Policies (Narrative) (Details)	3 Months Ended			12 Months Ended
	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Accounting Policies [Line Items]
Impairment of leasehold				$ 229,600,000
Computation of proved reserves, discount factor as percent	10.00%			10.00%
Decrease in the 12-Month Average Realized Price of oil				31.00%	8.00%	(18.00%)
Impairment of evaluated oil and gas properties	$ 585,800,000	$ 685,000,000.0	$ 1,300,000,000	$ 2,547,241,000	$ 0	$ 0
Accumulated depreciation	28,647,000			28,647,000	31,949,000
Amortization of financing costs				3,901,000	2,907,000	$ 2,483,000
Valuation allowance	639,185,000			$ 639,185,000	0
Number of operating segments \| segment				1
Operating lease, liability	40,751,000			$ 40,751,000	79,946,000
Operating lease right-of-use assets	$ 22,526,000			$ 22,526,000	$ 63,908,000
RSU equity awards \| Employees
Accounting Policies [Line Items]
Vesting period				3 years
RSU equity awards \| Directors
Accounting Policies [Line Items]
Vesting period				1 year
Cash-settleable RSU awards
Accounting Policies [Line Items]
Vesting period				3 years
Minimum \| Cash-settled SARs
Accounting Policies [Line Items]
Expiration period				1 year
Maximum \| Cash-settled SARs
Accounting Policies [Line Items]
Expiration period				6 years
Other Property and Equipment \| Minimum
Accounting Policies [Line Items]
Estimated useful lives of other property and equipment				2 years
Other Property and Equipment \| Maximum
Accounting Policies [Line Items]
Estimated useful lives of other property and equipment				20 years

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