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Contracts with Customers - Summary of Contract Assets and Contract Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Revenue From Contract With Customer [Abstract]
Contract assets	$ 583,670	$ 515,319
Contract liabilities	231,032	208,576
Net contract assets (liabilities)	352,638	$ 306,743
Change in contract assets	68,351
Change in contract liabilities	22,456
Change in contract assets and liabilities	$ 45,895
Percentage change in contract assets	13.30%
Percentage change in contract liabilities	10.80%
Percentage change in contract assets and liabilities	15.00%

X

- Definition

Change in contract with customer assets.

+ References

No definition available.

+ Details

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- Definition

Change in contract with customer assets and liabilities net.

+ References

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- Definition

Change in contract with customer liability.

+ References

No definition available.

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X

- Definition

Contract with customer asset cumulative catchup adjustment to revenue change in measure of progress percent.

+ References

No definition available.

+ Details

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- Definition

Contract with customer asset cumulative catchup adjustment to revenue change in measure of progress percent.

+ References

No definition available.

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- Definition

Contract with customer asset and liabilities net.

+ References

No definition available.

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- Definition

Contract with customer liability cumulative catchup adjustment to revenue change in measure of progress percent.

+ References

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130533-203044

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130531-203044

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130549-203045

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=118944033&loc=SL49130532-203044

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