Quarterly report pursuant to Section 13 or 15(d)

Uncategorized Items - ckh-20200331.htm

v3.20.1
Label Element Value
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 $ 879,201,000
AOCI Attributable to Parent [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 (914,000)
Common Stock [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 390,000
Retained Earnings [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 490,332,000
Noncontrolling Interest [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 159,524,000
Additional Paid-in Capital [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 1,596,642,000
Treasury Stock [Member]  
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterestAdjustedBalance1 (1,366,773,000)
Accounting Standards Update 2016-02 [Member] | Noncontrolling Interest [Member]  
Cumulative Effect of New Accounting Principle in Period of Adoption us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption $ 9,836,000